Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- $animal
- Angelfish
- Arapaima
- Arowana
- Barbel Steed
- Barred Knifejaw
- Bitterling
- Black Bass
- Blowfish
- Blue Marlin
- Bluegill
- Butterflyfish
- Carp
- Catfish
- Char
- Cherry Salmon
- Clownfish
- Coelacanth
- Crawfish
- Crucian Carp
- Dab
- Dace
- Dorado
- Eel
- Football Fish
- Freshwater Goby
- Frog
- Gar
- Giant Snakehead
- Giant Trevally
- Goldfish
- Guppy
- Hammerhead Shark
- Herabuna
- Horse Mackerel
- Jellyfish
- Killifish
- King Salmon
- Koi
- Loach
- Lobster
- Mitten Crab
- Moray Eel
- Napoleonfish
- Nibble Fish
- Neon Tetra
- Oarfish
- Ocean Sunfish
- Octopus
- Olive Flounder
- Pale Chub
- Pike
- Piranha
- Popeyed Goldfish
- Pond Smelt
- Puffer Fish
- Rainbow Trout
- Ray
- Red Snapper
- Ribbon Eel
- Saddled Bichir
- Salmon
- Saw Shark
- Sea Bass
- Sea Butterfly
- Seahorse
- Shark
- Softshell Turtle
- Squid
- Stringfish
- Surgeonfish
- Sweetfish
- Tadpole
- Tuna
- Whale Shark
- Yellow Perch
- Zebra Turkeyfish
- Bull Shark
- Goblin Shark
- Leopard
- Tiger
- Lion
- Jaguar
- Puma
- Cougar
- Mountain Lion
- Lynx
- Bobcat
- Tasmanian Tiger
- House-Cat
- Dog
- German Shephard
- Australian Shepard
- Labrodor
- Golden Retreiver
- Cocker Spanial
- Shitsu
- Pomeranian
- Chiwawa
- Boxer
- Bulldog
- Greyhound
- Poodle
- Leatherback Sea-Turtle
- Green Sea-Turtle
- Great White Shark
- Black-tip Reef Shark
- White-tip Reef Shark
- Tiger Shark
- Lemon Shark
- Nurse Shark
- Sand Shark
- Sand-Tiger Shark
- Manta Ray
- Abbott's Booby
- Abbott's Duiker
- Abbott's Starling
- Abdulali's Wrinkled Frog
- Abe's Salamander
- Aberdare Cisticola
- Aberdare Mole Shrew
- Abolokopatrika Madagascar Frog
- Abor Bug-eyed Frog
- Abra Acanacu Marsupial Frog
- Abra Malaga Toad
- Abronia deppii
- Abronia martindelcampoi
- Abyssinian Longclaw
- Acadian Whitefish
- Acancocha Water Frog
- Acanthobrama centisquama
- Acanthobrama telavivensis
- Acanthocyclops hypogeus
- Acanthodactylus ahmaddisii
- Acanthodactylus mechriguensis
- Acanthomyops latipes
- Acanthomyops murphyi
- Aceh Pheasant
- Acha Tugi Long-fingered Frog
- Achalas Four-eyed Frog
- Achondrostoma arcasii
- Achondrostoma occidentale
- Acicula norrisi
- Acicula palaestinensis
- Acilius duvergeri
- Ackawaio Stefania Treefrog
- Acropora Coral (Acropora abrolhosensis)
- Actinella anaglyptica
- Actinella armitageana
- Actinella carinofausta
- Actinella effugiens
- Actinella giramica
- Acultzingo Minute Salamander
- Acuminate Snaketail
- Acute Elimia
- Adam's Shadowdamsel
- Adamson's Grunter
- Addax
- Adelaide Pigmy Blue-tongue Skink
- Adeleana forcarti
- Adelophryne baturitensis
- Adelophryne maranguapensis
- Adelopoma stolli
- Adelos Salamander
- Aden Gulf Torpedo
- Aders' Duiker
- Adler's Mottled Treefrog
- Admirable False Brook Salamander
- Admiralty Cuscus
- Adriatic Salmon
- Adriatic Sturgeon
- Advena charon
- Aegean Minnow
- Aellen's Roundleaf Bat
- Aeolian Wall Lizard
- Aeshna yemenensis
- Afghan Tortoise
- Afghani Mountain Salamander
- Africallagma cuneistigma
- African Black Oystercatcher
- African Blind Barb Fish
- African Butter Catfish
- African Egg Frog
- African Elephant
- African Golden Cat
- African Gray Parrot
- African Green Broadbill
- African Lion
- African Painted Frog
- African Penguin
- African Skimmer
- African Slender-snouted Crocodile
- African Spurred Tortoise
- African True Toad
- African Viviparous Toad (Nectophrynoides asperginis)
- African Viviparous Toad (Nectophrynoides cryptus)
- African Viviparous Toad (Nectophrynoides laticeps)
- African Viviparous Toad (Nectophrynoides minutus)
- African Viviparous Toad (Nectophrynoides paulae)
- African Viviparous Toad (Nectophrynoides poyntoni)
- African Viviparous Toad (Nectophrynoides pseudotornieri)
- African Viviparous Toad (Nectophrynoides tornieri)
- African Viviparous Toad (Nectophrynoides vestergaardi)
- African Viviparous Toad (Nectophrynoides viviparus)
- African Viviparous Toad (Nectophrynoides wendyae)
- African Wedgefish
- African White-bellied Pangolin
- African Wild Ass
- African Wild Dog
- Afrixalus clarkei
- Afrixalus lacteus
- Afrogyrus rodriguezensis
- Afrogyrus starmuehlneri
- Agabus clypealis
- Agabus discicollis
- Agabus hozgargantae
- Agassiz's Coral
- Agile Gibbon
- Agkistrodon bilineatus
- Aglaodiaptomus kingsburyae
- Aglaodiaptomus marshianus
- Agra Bubble-nest Frog
- Agriocnemis palaeforma
- Agua Rica Leaf Frog
- Agulhas Long-billed Lark
- Ahl's Reed Frog
- Ahuitzotl Salamander
- Ailao Spiny Toad
- Airsac Catfish
- Akekee
- Akepa
- Akiapola'au
- Akikiki
- Ala Balik
- Ala Shan Redstart
- Alabama Cave Shrimp
- Alabama Cavefish
- Alabama Heelsplitter
- Alabama Lampmussel
- Alabama Moccasinshell
- Alabama Pearl Shell
- Alabama Red-belly Turtle
- Alabama Shad
- Alabama Sturgeon
- Alabama Waterdog
- Alabama Well Amphipod
- Alaena margaritacea
- Alagoas Antwren
- Alagoas Curassow
- Alagoas Foliage-gleaner
- Alagoas Tyrannulet
- Alajuela Knobtail
- Alamosa Springsnail
- Alaotra Grebe
- Alaotran Gentle Lemur
- Alban Cochran Frog
- Albanian Water Frog
- Alberca Silverside
- Albert Lates
- Albert's Lyrebird
- Albertine Owlet
- Alburnus belvica
- Alburnus orontis
- Alburnus qalilus
- Alcatrazes Lancehead
- Alcorn's Pocket Gopher
- Aldabra Brush Warbler
- Aldabra Drongo
- Aldabra Flying-fox
- Aldabra Giant Tortoise
- Alexteroon jynx
- Algerian Clubtail
- Algerian Nuthatch
- Algerian Ribbed Newt
- Alicia's Wrinkled Frog
- Allacanthos pittieri
- Allan's Lerista
- Allegheny Woodrat
- Allen's Cotton Rat
- Allen's River Frog
- Allen's Slippery Frog
- Alligator Snapping Turtle
- Allobates chalcopis
- Allobates humilis
- Allobates juanii
- Allobates kingsburyi
- Allobates mandelorum
- Allobates mcdiarmidi
- Allobates olfersioides
- Allobates ranoides
- Allobates subfolionidificans
- Allobates wayuu
- Allocharopa erskinensis
- Allodiaptomus satanas
- Allpahuayo Antbird
- Allyn Smith's Banded Snail
- Almirante Trail Toad
- Aloeides caledoni
- Aloeides carolynnae
- Aloeides dentatis
- Aloeides egerides
- Aloeides kaplani
- Aloeides lutescens
- Aloeides merces
- Aloeides nollothi
- Aloeides nubilus
- Aloeides pringlei
- Aloeides rossouwi
- Alona hercegovinae
- Alona sketi
- Alona smirnovi
- Alosa vistonica
- Alpine Asian Toad
- Alpine Shrew
- Alpine Stream Salamander
- Alpine Wallaby
- Alpine Woolly Rat
- Alsodes barrioi
- Alsodes montanus
- Alsodes nodosus
- Alsodes tumultuosus
- Alsodes vanzolinii
- Alta Verapaz Spikethumb Frog
- Altai Weasel
- Altamaha Arcmussel
- Altamaha Pocketbook
- Altamaha Spinymussel
- Altamira Yellowthroat
- Alto de Buey Poison Frog
- Alvarado's Salamander
- Alvarez del Toro's Salamander
- Alveopora allingi
- Alveopora catalai
- Alveopora daedalea
- Alveopora excelsa
- Alveopora fenestrata
- Alveopora gigas
- Alveopora japonica
- Alveopora marionensis
- Alveopora minuta
- Alveopora spongiosa
- Alveopora verrilliana
- Alveopora viridis
- Alvord Chub
- Alzoniella hartwigschuetti
- Amami Jay
- Amami Spiny Rat
- Amami Takachiho Snake
- Amami Tip-nosed Frog
- Amani Flatwing
- Amani Forest Frog
- Amani Sunbird
- Amargosa Toad
- Amargosa Vole
- Amarkantak Bubble-nest Frog
- Amastrid Land Snail (Amastra cylindrica)
- Amastrid Land Snail (Amastra micans)
- Amastrid Land Snail (Amastra rubens)
- Amastrid Land Snail (Amastra spirizona)
- Amatola Malachite
- Amatola Toad
- Amazon Climbing Salamander
- Amazon Giant Glass Frog
- Amazonian Manatee
- Amazonian Parrotlet
- Amber Darter
- Amber Mountain Rock-thrush
- Amber-coloured Salamander
- Ambohimitombo Bright-eyed Frog
- Ambohitantely Stump-toed Frog
- Ambon Yellow White-eye
- Ambrosi's Cave Salamander
- Ambystoma altamirani
- Ambystoma bombypellum
- Ambystoma mexicanum
- Ameerega ingeri
- American Bison
- American Burying Beetle
- American Cinchona Plantation Treefrog
- American Crocodile
- Amicorum Tree Toad
- Amiet's Long-fingered Frog
- Amietophrynus djohongensis
- Amietophrynus villiersi
- Amji Oriental Salamander
- Ammersee Kilch
- Ampelita fulgurata
- Ampelita julii
- Ampelita soulaiana
- Amphicyclotulus liratus
- Amphicyclotulus perplexus
- Amphorella iridescens
- Amphorella melampoides
- Amphorella producta
- Amplirhagada astuta
- Amplirhagada questroana
- Amsterdam Albatross
- Amur Sturgeon
- Anaecypris hispanica
- Anaimalai Flying Frog
- Analabe Giant Treefrog
- Anamallais Indian Frog
- Anambra Waxbill
- Anatipes Robber Frog
- Anatolia Lycian Salamander
- Ancash Water Frog
- Anceya terebriformis
- Ancient Antwren
- Ancient Greenling
- Ancylus ashangiensis
- Andalgala Water Frog
- Andaman Crake
- Andaman Crow
- Andaman Cuckoo-dove
- Andaman Drongo
- Andaman Hawk-owl
- Andaman Horseshoe Bat
- Andaman Rat
- Andaman Scops-owl
- Andaman Serpent-eagle
- Andaman Spiny Shrew
- Andaman Treepie
- Andaman White-toothed Shrew
- Andaman Wood-pigeon
- Andaman Woodpecker
- Andean Bear
- Andean Caenolestid
- Andean Cat
- Andean Catfish
- Andean Condor
- Andean Flamingo
- Andean Hairy Armadillo
- Andean Night Monkey
- Andean Poison Frog
- Andean Titi Monkey
- Anderson's Crocodile Newt
- Anderson's Salamander
- Anderson's Squirrel
- Andes Marsupial Frog
- Andes Stubfoot Toad
- Andoany Stump-toed Frog
- Andrews' Robber Frog
- Andringitra Madagascar Frog
- Anegada Ground Iguana
- Angel Island Mouse
- Angel Shark
- Angel's Madagascar Frog
- Angled Tiger
- Angola Cave-chat
- Angolan Epauletted Fruit Bat
- Angrobia anodonta
- Angrobia dyeriana
- Angrobia grampianensis
- Angrobia petterdi
- Anguila Ciega
- Angular Angelshark
- Angular Dwarf Crayfish
- Angular Pebblesnail
- Angular Rough Shark
- Angulated Tortoise
- Anhui Musk Deer
- Anianiau
- Anisogomphus solitaris
- Anita's False Brook Salamander
- Anjouan Island Sparrowhawk
- Anjouan Scops Owl
- Ankarana Sportive Lemur
- Ankober Serin
- Annam Flying Frog
- Annam Leaf Turtle
- Annam Spadefoot Toad
- Annandale's Paa Frog
- Annobon White-eye
- Annual Tropical Killifish
- Anomaloglossus beebei
- Anomaloglossus breweri
- Anomaloglossus murisipanensis
- Anoplolepis nuptialis
- Ansell's Shrew
- Ansonia guibei
- Ansonia latidisca
- Antado Stubfoot Toad
- Antafia Sportive Lemur
- Anthias regalis
- Anthias salmopunctatus
- Anthony's Riversnail
- Antichthonidris bidentatus
- Antiguan Racer
- Antioquia Bristle-tyrant
- Antioquia Giant Glass Frog
- Antioquia Marsupial Frog
- Antipodean Albatross
- Antipodes Green Parakeet
- Antiponemertes allisonae
- Antrisocopia prehensilis
- Antrobia breweri
- Antrobia culveri
- Antsingy Leaf Chameleon
- Apache Trout
- Apalachicola Cave Crayfish
- Apaporis River Caiman
- Apeco Oldfield Mouse
- Apennine Chamois
- Aphaenogaster bidentatus
- Aphanius almiriensis
- Aphanius baeticus
- Aphanius burduricus
- Aphanius iberus
- Aphanius richardsoni
- Aphanius sirhani
- Aphanius splendens
- Aphanius transgrediens
- Api Dwarf Toad
- Aplastodiscus eugenioi
- Apo Myna
- Apo Sunbird
- Apolinar's Marsh-wren
- Apollo Butterfly
- Apostates Robber Frog
- Appalachian Cottontail
- Appalachian Elktoe
- Appalachian Monkeyface Pearlymussel
- Appalachian Snaketail
- Appert's Tetraka
- Aprada Stefania Treefrog
- Apron Ray
- Apurimac Spinetail
- Aquadulcaris pheronyx
- Aquatic Box Turtle
- Aquatic False Brook Salamander
- Aquatic Rat
- Aquatic Tenrec
- Aquatic Treefrog
- Aquatic Warbler
- Arabian Gazelle
- Arabian Grosbeak
- Arabian Oryx
- Arabian Tahr
- Arabian Woodpecker
- Arachnothelphusa melanippe
- Aragua Glass Frog
- Arakan Forest Turtle
- Aran Rock Lizard
- Araripe Manakin
- Aratathomas's Yellow Shouldered Bat
- Araucaria Tit-spinetail
- Arawacus aethesa
- Arboreal Minute Salamander
- Arboreal Splayfoot Salamander
- Arcane Spikethumb Frog
- Archachatina bicarinata
- Archbold's Bowerbird
- Archer's Lark
- Archey's Frog
- Arctodiaptomus burduricus
- Arctodiaptomus euacanthus
- Arctodiaptomus kamtschaticus
- Arctodiaptomus michaeli
- Arend's Golden Mole
- Arfak Rainbowfish
- Arfak Ringtail
- Argali
- Arganiella exilis
- Argentine Angel Shark
- Argentine Tortoise
- Argentine Tuco-tuco
- Argentine Water Frog
- Ariakehimeshirauo
- Arico Water Frog
- Arinia biplicata
- Arinia boreoborneensis
- Arinia dentifera
- Arinia oviformis
- Arinia simplex
- Arinia streptaxiformis
- Arisan Oriental Salamander
- Aristochromis Deep
- Arius bonillai
- Arius festinus
- Arius uncinatus
- Arizona Cave Amphipod
- Arizona Giant Sand Treader Cricket
- Arizona Striped Whiptail
- Arkansas Fatmucket
- Arlequinus krebsi
- Armadillo Girdled Lizard
- Armenian Birch Mouse
- Armenian Myotis
- Armigerous River Snail
- Armored Snail
- Armoured Frog
- Armsia petasus
- Arnhem Land Rock Rat
- Arnhem Leaf-nosed Bat
- Arno Goby
- Arnold's Paa Frog
- Arntully Robber Frog
- Arodi Bubble-nest Frog
- Aromobates alboguttatus
- Aromobates duranti
- Aromobates haydeeae
- Aromobates leopardalis
- Aromobates mayorgai
- Aromobates meridensis
- Aromobates molinarii
- Aromobates nocturnus
- Aromobates orostoma
- Aromobates saltuensis
- Aromobates serranus
- Arrogant Shrew
- Arroyo Southwestern Toad
- Arthroleptis francei
- Arthur River Freshwater Snail
- Arthur's Stubfoot Toad
- Arthurs Paragalaxias
- Aru Flying Fox
- Aruba Island Rattlesnake
- Arubolana imula
- Arum Reed Frog
- Arunachal Macaque
- Ascension Frigatebird
- Ash Meadows Pebblesnail
- Ash's Lark
- Ash-breasted Tit-tyrant
- Ash-throated Antwren
- Ashaninka Oldfield Mouse
- Ashy Antwren
- Ashy Darter
- Ashy Storm-petrel
- Ashy Thrush
- Ashy-breasted Flycatcher
- Ashy-headed Laughingthrush
- Asia Minor Ground Squirrel
- Asiagomphus yayeyamensis
- Asian Bonytongue
- Asian Dowitcher
- Asian Elephant
- Asian Giant Softshell Turtle
- Asian Giant Tortoise
- Asian Golden Cat
- Asian Golden Weaver
- Asian Green Broadbill
- Asian Leopard Cat
- Asian Small-clawed Otter
- Asian Tapir
- Asian Wild Ass
- Asiatic Black Bear
- Asiatic Lion
- Asiatic Short-tailed Shrew
- Asiatic Softshell Turtle
- Aslauga australis
- Asoka Barb
- Aspatharia divaricata
- Aspatharia subreniformis
- Asprete
- Assam Macaque
- Assam Roofed Turtle
- Astacoides crosnieri
- Astacoides petiti
- Astreopora cucullata
- Astreopora expansa
- Astreopora incrustans
- Astreopora macrostoma
- Astreopora moretonensis
- Astylosternus fallax
- Astylosternus nganhanus
- Astylosternus ranoides
- Astylosternus schioetzi
- Atacama Myotis
- Atelognathus jeinimenensis
- Atelognathus nitoi
- Atelognathus patagonicus
- Atelognathus praebasalticus
- Atelognathus reverberii
- Atelognathus salai
- Atelognathus solitarius
- Atelopus angelito
- Atelopus arsyecue
- Atelopus chrysocorallus
- Atelopus dimorphus
- Atelopus epikeisthos
- Atelopus exiguus
- Atelopus famelicus
- Atelopus laetissimus
- Atelopus lozanoi
- Atelopus mandingues
- Atelopus minutulus
- Atelopus nanay
- Atelopus onorei
- Atelopus petersi
- Atelopus petriruizi
- Atelopus pictiventris
- Atelopus pyrodactylus
- Atelopus quimbaya
- Atelopus reticulatus
- Atelopus sernai
- Atelopus simulatus
- Atelopus subornatus
- Atherton Antechinus
- Atif's Lycian Salamander
- Atitlan Grebe
- Atiu Swiftlet
- Atlantasellus cavernicolus
- Atlantic Cod
- Atlantic Halibut
- Atlantic Humpbacked Dolphin
- Atlantic Petrel
- Atlantic Pigtoe
- Atlantic Royal Flycatcher
- Atlantic Salmon
- Atlantic Sawtail Catshark
- Atlantic Titi
- Atlantic Yellow-nosed Albatross
- Atlas Day Gecko
- Atlas Dwarf Lizard
- Atlas Dwarf Viper
- Atlas Goldenring
- Atlas Pebblesnail
- Atoll Fruit-dove
- Atoll Starling
- Atopophrynus syntomopus
- Atoyac Minute Salamander
- Atrophaneura atropos
- Atrophaneura jophon
- Atrophaneura luchti
- Atrophaneura schadenbergi
- Atyid Shrimp
- Auckland Island Rail
- Auckland Islands Shag
- Auckland Islands Teal
- Audouin's Gull
- Aulonocara aquilonium
- Aulonocara auditor
- Aulonocara ethelwynnae
- Aulonocara hansbaenschi
- Aulonocara hueseri
- Aulonocara kandeense
- Aulonocara korneliae
- Aulonocara maylandi
- Aulonocara nyassae
- Aulonocara steveni
- Aurelio's Rock Lizard
- Austen's Brown Hornbill
- Austin Blind Salamander
- Austin's Shadowdamsel
- Austral Rail
- Australasian Bittern
- Australian Ant
- Australian Bustard
- Australian Freshwater Limpet
- Australian Grayling
- Australian Lace-lid
- Australian Sea-lion
- Australian Snubfin Dolphin
- Australogyra zelli
- Australomussa rowleyensis
- Austroassiminea letha
- Austrolebias cinereus
- Austrosaga spinifer
- Austrothelphusa tigrina
- Austrothelphusa valentula
- Austrothelphusa wasselli
- Avahi
- Avalon Hairstreak
- Avotrichodactylus oaxensis
- Awash Multimammate Mouse
- Ayampe Poison Frog
- Ayanganna Stefania Treefrog
- Aye-aye
- Aylacostoma chloroticum
- Aylacostoma guaraniticum
- Aylacostoma stigmaticum
- Ayres Black Uakari
- Ayumodoki
- Azara's Tuco-tuco
- Azorean Bat
- Azores Bullfinch
- Azores Wood Pigeon
- Azuay Marsupial Frog
- Azuay Stubfoot Toad
- Azulita Salamander
- Azure Jay
- Azure-breasted Pitta
- Azure-rumped Tanager
- Azure-shouldered Tanager
- Babault's Mouse Shrew
- Babina subaspera
- Babirusa
- Bachman's Sparrow
- Bachman's Wood Warbler
- Back-striped Sportive Lemur
- Bactrian Camel
- Badplaas Black Millipede
- Badwater Snail
- Baer's Pochard
- Baer's Wood Mouse
- Baetica ustulata
- Bagangan
- Bagre De Rio Verde
- Bagre De Yaqui
- Bagrecito Andes Frog
- Bahama Swallow
- Bahaman Lesser Funnel-eared Bat
- Bahamas Rock Iguana
- Bahamian Hutia
- Bahia Antwren
- Bahia Spinetail
- Bahia Tapaculo
- Bahia Tyrannulet
- Baikal Teal
- Bailey's Shrew
- Bailey's Snake
- Baird's Trogon
- Baja California Legless Lizard
- Baja California Rock Squirrel
- Baja California Whiptail
- Baja Verapaz Salamander
- Baker's Robber Frog
- Baker's Small Toothed Harvest Mouse
- Bakossi Reed Frog
- Balabac Mouse Deer
- Balbalan Frog
- Balcones Cave Amphipod
- Balcones Cave Shrimp
- Bald Parrot
- Bald Uakari
- Bale Monkey
- Bale Mountains Frog
- Bale Mountains Tree Frog
- Bale Shrew
- Balearic Shearwater
- Balkan Blind Mole Rat
- Balkan Snow Vole
- Ball Bearing Frog
- Balloon Frog
- Balsas Armed Lizard
- Balsas Screech-owl
- Balsas Splitfin
- Baltic Sturgeon
- Balu Flying Frog
- Baluchistan Forest Dormouse
- Bamboutos Egg Frog
- Bamboutos Smalltongue Toad
- Bamenda Reed Frog
- Bamileke Plateau Frog
- Banahao Forest Frog
- Banana Bat
- Bananal Antbird
- Banbury Springs Limpet
- Band-bellied Crake
- Band-tailed Antwren
- Banded Cotinga
- Banded Day Gecko
- Banded Eagle Ray
- Banded Elimia
- Banded Flying Frog
- Banded Green Sunbird
- Banded Ground-cuckoo
- Banded Hare Wallaby
- Banded Horned Treefrog
- Banded Neolebias
- Banded Palm Civit
- Banded Surili
- Banded Toed Gecko
- Banded Wattle-eye
- Banded White-eye
- Banded Wobbegong
- Bandula Barb
- Banggai Cardinalfish
- Banggai Crow
- Bangs's Mountain Squirrel
- Bangwa Forest Warbler
- Bank Cormorant
- Banks Flying Fox
- Banner-tailed Kangaroo Rat
- Bannerman's Turaco
- Bannerman's Weaver
- Banteng
- Baolan
- Baoruco Burrowing Frog
- Baoruco Hammer Frog
- Bar-tailed Pheasant
- Bar-winged Wood-wren
- Barabattoia laddi
- Baracoa Dwarf Frog
- Barahona Rock Frog
- Baramundi Cod
- Barau's Petrel
- Barbados Racer
- Barbados Yellow Warbler
- Barbary Macaque
- Barbary Serval
- Barbary Sheep
- Barbatula eregliensis
- Barbatula samantica
- Barbatula seyhanensis
- Barbatula simavica
- Barbatula tschaiyssuensis
- Barbus acuticeps
- Barbus alluaudi
- Barbus amatolicus
- Barbus andrewi
- Barbus brevipinnis
- Barbus calidus
- Barbus caninus
- Barbus chantrei
- Barbus choloensis
- Barbus claudinae
- Barbus erubescens
- Barbus euboicus
- Barbus haasi
- Barbus harterti
- Barbus huloti
- Barbus issenensis
- Barbus ksibi
- Barbus laticeps
- Barbus longiceps
- Barbus lufukiensis
- Barbus macrolepis
- Barbus meridionalis
- Barbus motebensis
- Barbus nasus
- Barbus paytonii
- Barbus prespensis
- Barbus pseudotoppini
- Barbus quadralineatus
- Barbus reinii
- Barbus ruasae
- Barbus serengetiensis
- Barbus serra
- Barbus sp. nov. 'Banhine'
- Barbus sp. nov. 'Chimanimani'
- Barbus sp. nov. 'Nzoia'
- Barbus sp. nov. 'Pangani'
- Barbus sp. nov. 'Waterberg'
- Barbus sperchiensis
- Barbus tauricus
- Barbus treurensis
- Barbus trevelyani
- Barber's Sheep Frog
- Barbour's Forest Treefrog
- Barbour's Seahorse
- Barbour's Vlei Rat
- Barbuda Warbler
- Bardick Snake
- Bare-backed Rousette
- Bare-eyed Myna
- Bare-necked Umbrellabird
- Bare-throated Bellbird
- Bareback Shovelnose Ray
- Baringo
- Barker's Anole
- Barnard's Rock-catfish
- Barndoor Winter Skate
- Barr's Cave Amphipod
- Barred Bandicoot
- Barred Danio
- Barred Galaxias
- Barrens Topminnow
- Barrington Land Iguana
- Barrio's Frog
- Bartels's Rat
- Barton Springs Salamander
- Basecamp Giant Glass Frog
- Basking Shark
- Basra Reed Warbler
- Bastard Sturgeon
- Bastrop Crayfish
- Bat Cave Isopod
- Bates's Weaver
- Bath County Cave Amphipod
- Bathanalia howesi
- Bathurst Copper
- Batrachophrynus brachydactylus
- Batrachophrynus macrostomus
- Batrachuperus cochranae
- Batrachus uranoscopus
- Baudo Guan
- Baudo Oropendola
- Bavarian Pine Vole
- Baw Baw Frog
- Bay Lycian Salamander
- Bay-breasted Cuckoo
- Bay-capped Wren-spinetail
- Bay-ringed Tyrannulet
- Bay-vented Cotinga
- Bayadera ishigakiana
- Be'er Sheva Fringe-fingered Lizard
- Beach Mouse
- Beach Thick-knee
- Beach Vole
- Beal's-eyed Turtle
- Bear Lake Sculpin
- Bearded Black Millipede
- Bearded Guan
- Bearded Red Crayfish
- Bearded Saki
- Bearded Screech-owl
- Bearded Tachuri
- Bearded Wood-partridge
- Beaudouin's Snake-eagle
- Beautiful Crayfish
- Beautiful Jay
- Beautiful Mantella
- Beautiful Nursery-frog
- Beautiful Nuthatch
- Beautiful Parachute Spider
- Beautiful Petaltail
- Beautiful Shiner
- Beautiful Treerunner
- Beccari's Margareta Rat
- Bechstein's Bat
- Beck's Petrel
- Beck's Treefrog
- Beddome's Bubble-nest Frog
- Beddome's Toad
- Beddomeia hullii
- Beddomeia salmonis
- Bedford's Paradise-flycatcher
- Bedford-russell's Tree-nymph
- Bednall's Land Snail
- Bedotia geayi
- Bedotia madagascariensis
- Bedotia marojejy
- Bedotia masoala
- Bedotia sp. nov. 'Ankavia-Ankavanana'
- Bedotia sp. nov. 'Bemarivo'
- Bedotia sp. nov. 'Betampona'
- Bedotia sp. nov. 'Lazana'
- Bedotia sp. nov. 'Mahanara'
- Bedotia sp. nov. 'Manombo'
- Bedotia sp. nov. 'Namorona'
- Bedotia sp. nov. 'Nosivola'
- Bedotia sp. nov. 'Sambava'
- Bedotia sp. nov. 'Vevembe'
- Bedotia tricolor
- Bedriaga's Fringe-fingered Lizard
- Bedriaga's Rock Lizard
- Bedriaga's Skink
- Bee Creek Cave Harvestman
- Bee Hummingbird
- Beira Antelope
- Beisa Oryx
- Bekko Tombo
- Belding's Yellowthroat
- Belgrandiella alticola
- Belgrandiella austriana
- Belgrandiella bojnicensis
- Belgrandiella fuchsi
- Belgrandiella ganslmayri
- Belgrandiella mimula
- Belgrandiella parreyssi
- Belgrandiella pelerei
- Belgrandiella pyrenaica
- Belgrandiella slovenica
- Belgrandiella styriaca
- Belgrandiella wawrai
- Belkin's Dune Tabanid Fly
- Bell's False Brook Salamander
- Bell's Vireo
- Bellamya constricta
- Bellamya contracta
- Bellamya costulata
- Bellamya crawshayi
- Bellamya jucunda
- Bellamya leopoldvillensis
- Bellamya liberiana
- Bellamya monardi
- Bellamya mweruensis
- Bellamya pagodiformis
- Bellamya phthinotropis
- Bellamya robertsoni
- Bellamya rubicunda
- Bellamya trochearis
- Belle's Sanddragon
- Belly-spotted Treefrog
- Beloribitsa
- Belted Flycatcher
- Beluga
- Bemaraha Woolly Lemur
- Benavony Bright-eyed Frog
- Bendire's Thrasher
- Bendrao Digging Frog
- Bengal Florican
- Bengal Monitor
- Bengal Ornamental
- Bengal Roof Turtle
- Bengal Slow Loris
- Beni Titi Monkey
- Benkulen Toad
- Bennett's Tree Kangaroo
- Bentfin Devil Ray
- Benton County Cave Crayfish
- Berg River Redfin
- Berg's Tuco-tuco
- Berger's Cape Tortoise
- Berlepsch's Canastero
- Bermuda Cave Amphipod
- Bermuda Rock Lizard
- Bernhard's Mantella
- Bernier's Vanga
- Berry Cave Salamander
- Betampona Burrowing Frog
- Betic Midwife Toad
- Betsileo Bright-eyed Frog
- Betsileo Digging Frog
- Betta burdigala
- Betta chini
- Betta chloropharynx
- Betta hipposideros
- Betta livida
- Betta macrostoma
- Betta miniopinna
- Betta persephone
- Betta simplex
- Betta spilotogena
- Betta tomi
- Bhutan Giant Flying Squirrel
- Biak Bare-backed Fruit Bat
- Biak Black Flycatcher
- Biak Coucal
- Biak Dark Crow
- Biak Giant Rat
- Biak Megapode
- Biak Monarch
- Biak Paradise-kingfisher
- Biak Scops-owl
- Biak Threespot Crow
- Biak Tiger
- Biak White-eye
- Bibron's Toadlet
- Bicknell's Thrush
- Bicol Narrowmouth Toad
- Bicolor Cactus Snail
- Bicolored Antpitta
- Bicoloured Antvireo
- Bicoloured Frog
- Bienkotetrix transsylvanicus
- Bifurcated Cave Amphipod
- Big Bend Gambusia
- Big Bend Slider
- Big Blue Spring Cave Crayfish
- Big Deer Mouse
- Big Levels Salamander
- Big Mexican Small-eared Shrew
- Big Pine Key Conehead Katydid
- Big Pocket Gopher
- Big Sandy Crayfish
- Big South Fork Crayfish
- Big White Fish
- Big-cheeked Cave Crayfish
- Big-eared Chirping Frog
- Big-eyed Forest Treefrog
- Big-footed Minute Salamander
- Big-headed Amazon River Turtle
- Big-headed Mole Rat
- Big-headed Turtle
- Bigeye Lates
- Bigeye Tuna
- Bigfoot Leopard Frog
- Bigfoot Splayfoot Salamander
- Bighorn Sheep
- Bignose Fanskate
- Binchuan Horned Toad
- Bioko Forest Shrew
- Biomphalaria barthi
- Biomphalaria tchadiensis
- Birdlike Noctule
- Birdsnest Coral
- Birdwing Pearlymussel
- Bismarck Flying Fox
- Bismarck Giant Rat
- Bismarck Kingfisher
- Bismarck Masked-owl
- Bismarck Melidectes
- Bismarck Thicketbird
- Bitungu
- Bizant River Shark
- Black Abalone
- Black And Rufous Elephant Shrew
- Black Caiman
- Black Catbird
- Black Clubshell
- Black Cod
- Black Colobus Monkey
- Black Creek Crayfish
- Black Crested Gibbon
- Black Crested Mangabey
- Black Crowned-crane
- Black Dorcopsis Wallaby
- Black False Brook Salamander
- Black Finless Porpoise
- Black Flathead Toad
- Black Giant Squirrel
- Black Grouper
- Black Guan
- Black Harrier
- Black Honey-buzzard
- Black Hornbill
- Black Inca
- Black Jackrabbit
- Black Jumping Salamander
- Black Knobby Newt
- Black Lemur
- Black Long-fingered Frog
- Black Magpie
- Black Marsh Turtle
- Black Mogurnda
- Black Mountain Boulder Frog
- Black Mudalia
- Black Munia
- Black Muntjac
- Black Musk Deer
- Black Oriole
- Black Partridge
- Black Racer
- Black Rail
- Black Rhinoceros
- Black Rockfish
- Black Salamander
- Black Sea Bass
- Black Sea Viper
- Black Shama
- Black Sicklebill
- Black Softshell Turtle
- Black Solitary Eagle
- Black Squirrel Monkey
- Black Stilt
- Black Tinamou
- Black Toad
- Black Torrent Toad
- Black Wallaroo
- Black Water Frog
- Black-and-chestnut Eagle
- Black-and-gold Cotinga
- Black-and-gold Tanager
- Black-and-rufous Flycatcher
- Black-and-tawny Seedeater
- Black-and-white Bulbul
- Black-and-white Monarch
- Black-and-white Monjita
- Black-and-white Ruffed Lemur
- Black-and-white Tanager
- Black-and-yellow Broadbill
- Black-backed Shadowdamsel
- Black-backed Tanager
- Black-banded Bannerwing
- Black-banded Barbet
- Black-banded Flycatcher
- Black-bearded Flying Fox
- Black-bellied Malkoha
- Black-bellied Seedeater
- Black-bellied Tern
- Black-bibbed Cicadabird
- Black-billed Amazon
- Black-billed Flycatcher
- Black-billed Gull
- Black-blotched Stingray
- Black-bodied Woodpecker
- Black-breasted Buttonquail
- Black-breasted Hill Turtle
- Black-breasted Parrotbill
- Black-breasted Puffleg
- Black-browed Albatross
- Black-capped Petrel
- Black-capped Piprites
- Black-capped Vireo
- Black-cheeked Ant-tanager
- Black-cheeked Lovebird
- Black-chested Honeyeater
- Black-chinned Monarch
- Black-clawed Brush-furred Rat
- Black-crest Elimia
- Black-crowned Barwing
- Black-crowned Dwarf Marmoset
- Black-eared Mantella
- Black-eared Miner
- Black-eyed Treefrog
- Black-faced Black Spider Monkey
- Black-faced Impala
- Black-faced Pitta
- Black-faced Spoonbill
- Black-Finned Goodeid
- Black-footed Albatross
- Black-footed Cat
- Black-footed Ferret
- Black-footed Gray Langur
- Black-footed Rock Wallaby
- Black-footed Tree Rat
- Black-fronted Piping-guan
- Black-fronted Tern
- Black-fronted Titi Monkey
- Black-fronted Wood-quail
- Black-handed Tamarin
- Black-headed Berryeater
- Black-headed Ibis
- Black-headed Parrotbill
- Black-headed Rufous Warbler
- Black-headed Uakari
- Black-hooded Antwren
- Black-hooded Coucal
- Black-hooded Laughingthrush
- Black-horned Capuchin
- Black-legged Dacnis
- Black-legged Poison Frog
- Black-lored Parrot
- Black-masked Finch
- Black-necked Crane
- Black-necked Stork
- Black-polled Yellowthroat
- Black-snouted Flying Frog
- Black-spectacled Brush-finch
- Black-spotted Cuscus
- Black-spotted False Brook Salamander
- Black-spotted Newt
- Black-spotted Pond Frog
- Black-striped Squirrel
- Black-tailed Antbird
- Black-tailed Deer Mouse
- Black-tailed Godwit
- Black-tailed Hutia
- Black-thighed Puffleg
- Black-throated Babbler
- Black-throated Blue Robin
- Black-throated Finch
- Black-throated Shrikebill
- Black-throated Wren-babbler
- Black-vented Shearwater
- Black-webbed Treefrog
- Black-winged Lory
- Black-winged Pratincole
- Black-winged Starling
- Black-wristed Deer Mouse
- Blackbarred Crayfish
- Blackbelly Garter Snake
- Blackbelted Crayfish
- Blackbuck
- Blackburn's Sphinx Moth
- Blackchin Guitarfish
- Blackfin Pupfish
- Blackish Shrew Opossum
- Blackish-blue Seedeater
- Blackish-breasted Babbler
- Blackish-headed Spinetail
- Blackmouth Shiner
- Blacksaddled Coral Grouper
- Blackspot Shark
- Blackspot Skate
- Blackspot Tuskfish
- Blackspotted Long-fingered Frog
- Blakiston's Fish-owl
- Blanc's Fringe-toed Lizard
- Blanc's Sand Racer
- Blastomussa wellsi
- Bleeding Toad
- Bleher's Rainbowfish
- Blick's Grass Rat
- Blind Cave Beetle
- Blind Cave Fish
- Blind Loach
- Blind Naked-belly Barbel
- Bliss Rapid Snail
- Bloater
- Blommers Bright-eyed Frog
- Blond Titi Monkey
- Blonde Capuchin
- Blossomcrown
- Blotched Mogurnda
- Blotchside Logperch
- Blue Bird-of-paradise
- Blue Bustard
- Blue Chaffinch
- Blue Coral
- Blue Crane
- Blue Duck
- Blue Finch
- Blue Giant Glass Frog
- Blue Lorikeet
- Blue Mountain Vireo
- Blue Mountain Water Skink
- Blue Paradise-flycatcher
- Blue Ridge Gray-cheeked Salamander
- Blue Shiner
- Blue Skate
- Blue Spring Aphaostracon
- Blue Swallow
- Blue Whale
- Blue-and-gold Tanager
- Blue-and-orange Threadtail
- Blue-banded Kingfisher
- Blue-bellied Parrot
- Blue-billed Curassow
- Blue-billed Duck
- Blue-capped Fruit-dove
- Blue-capped Hummingbird
- Blue-cheeked Amazon
- Blue-crowned Laughingthrush
- Blue-eyed Aquatic Treefrog
- Blue-eyed Cockatoo
- Blue-eyed Cuscus
- Blue-eyed Ground Dove
- Blue-eyed Spotted Cuscus
- Blue-faced Rail
- Blue-fronted Lorikeet
- Blue-headed Macaw
- Blue-headed Pitta
- Blue-headed Quail-dove
- Blue-headed Racquet-tail
- Blue-legged Mantella
- Blue-masked Leafbird
- Blue-naped Parrot
- Blue-rumped Parrot
- Blue-sided Treefrog
- Blue-spotted Mexican Treefrog
- Blue-streaked Lory
- Blue-throated Macaw
- Blue-throated Parakeet
- Blue-whiskered Tanager
- Blue-winged Goose
- Blue-winged Macaw
- Blue-winged Racquet-tail
- Bluebarred Pygmy Sunfish
- Bluegrass Crayfish
- Bluegray Carpetshark
- Bluemask Darter
- Bluespotted Bamboo Shark
- Bluestripe Darter
- Bluetail Glass Barb
- Blunt-eared Bat
- Blunt-headed Salamander
- Blunt-nosed Leopard Lizard
- Blunt-toed Chirping Frog
- Bluntnose Shiner
- Blyth's Flying Fox
- Blyth's Kingfisher
- Blyth's River Frog
- Blyth's Tragopan Pheasant
- Blythe River Freshwater Snail
- Bobiri Reed Frog
- Boca de Yumuri Frog
- Bocaccio Rockfish
- Boeckella bispinosa
- Boeckella calcaris
- Boeckella geniculata
- Boeckella nyoraensis
- Boeckella shieli
- Boeseman's Rainbowfish
- Boettger's Grainy Frog
- Boettgeria obesiuscula
- Bofilliella subarcuata
- Bog Turtle
- Bogidiella bermudensis
- Bogota Rail
- Bogota Treefrog
- Boisduval's Blue Butterfly
- Bokermann's Bromeliad Frogs
- Bokermannohyla izecksohni
- Bokermannohyla vulcaniae
- Bolano's Woodrat
- Bold Characodon
- Bolifamba Egg Frog
- Bolivar Bush Toad
- Bolivian Chinchilla Rat
- Bolivian Recurvebill
- Bolivian Spinetail
- Bolivian Water Frog
- Bolson Tortoise
- Bombay Bubble-nest Frog
- Bondelle
- Bone Cave Harvestman
- Boneberg's Frog
- Bonetto's Tuco-tuco
- Bongo
- Bonhote's Mouse
- Bonin Flying Fox
- Bonin White-eye
- Boninagrion ezoin
- Boninena callistoderma
- Boninena hiraseana
- Boninena ogasawarae
- Boninosuccinea ogasawarae
- Boninosuccinea punctulispira
- Bontebok
- Bonthain Tiger
- Bonytail Chub
- Boophis tampoka
- Booroolong Frog
- Booted Macaque
- Bopatalawa Rice Frog
- Boqueron Robber Frog
- Boquete Rocket Frog
- Borax Lake Chub
- Borbour's Montane Pitviper
- Bordered Knob-tipped Shadowdamsel
- Boreal Toad
- Boreas uglowi
- Boribory Rain Frog
- Bornean Banded Langur
- Bornean Bristlehead
- Bornean Flat-headed Frog
- Bornean Frogmouth
- Bornean Ground-cuckoo
- Bornean Leaf-nosed Bat
- Bornean Orangutan
- Bornean Peacock-pheasant
- Bornean River Turtle
- Bornean Slow Loris
- Bornean Water Shrew
- Bornean Wren-babbler
- Borneo Bay Cat
- Borneo Bubble-nest Frog
- Borneo Narrowmouth Toad
- Borneo Shark
- Borneo Splash Frog
- Boroda expatria
- Bot River Klipfish
- Botha's Lark
- Bothriembryon bradshaweri
- Bothriembryon brazieri
- Bothriembryon glauerti
- Bothriembryon irvineanus
- Bothriembryon perobesus
- Bothriembryon praecelcus
- Bothriembryon spenceri
- Bothriembryon whitleyi
- Bottiella cucutensis
- Bottiella medemi
- Bottlenose Skate
- Botucatu Escuerzo
- Boucardicus albocinctus
- Boucardicus antiquus
- Boucardicus carylae
- Boucardicus culminans
- Boucardicus curvifolius
- Boucardicus delicatus
- Boucardicus divei
- Boucardicus esetrae
- Boucardicus fidimananai
- Boucardicus fortistriatus
- Boucardicus magnilobatus
- Boucardicus mahermanae
- Boucardicus rakotoarisoni
- Boucardicus randalanai
- Boucardicus simplex
- Boucardicus tridentatus
- Boucardicus victorhernandezi
- Bougainville Bush-warbler
- Bougainville Giant Rat
- Bougainville Monkey-faced Bat
- Bougainville Thicketbird
- Boulder Darter
- Boulder Pile Mountain Snail
- Boulenger's Backpack Frog
- Boulenger's Egg Frog
- Boulenger's Indian Frog
- Boulenger's Rocket Frog
- Boulenger's Small Flying Frog
- Boulenger's Spiny Frog
- Boulenger's Stubfoot Toad
- Bounty Islands Shag
- Bourlon's Genet
- Bousfield's Amphipod
- Bowhead Whale
- Bowman's Cave Amphipod
- Bowmouth Guitarfish
- Bowry Creek Freshwater Snail
- Boxer Pupfish
- Boyaca Giant Glass Frog
- Bracket Coral
- Bradytriton silus
- Braken Bat Cave Meshweaver
- Bramble Cay Mosaic-tailed Rat
- Branchinecta belki
- Branchinecta mexicana
- Branchinella alachua
- Branchinella apophysata
- Branchinella basispina
- Branchinella denticulata
- Branchinella lithaca
- Branchinella simplex
- Branchinella wellardi
- Branching Anchor Coral
- Branching Frogspawn Coral
- Brandt's Hamster
- Brash Bubble-nest Frog
- Brasilia Lyrefin
- Brasilia Tapaculo
- Brass's Friarbird
- Brauer's Burrowing Skink
- Braun's Toad
- Brawleys Fork Crayfish
- Brazilian Arboreal Mouse
- Brazilian Black-tyrant
- Brazilian Blind Electric Ray
- Brazilian Button Frog
- Brazilian Cownose Ray
- Brazilian Funnel-eared Bat
- Brazilian Giant Tortoise
- Brazilian Guitarfish
- Brazilian Merganser
- Brazilian River Frog
- Brazilian Sideneck Turtle
- Brazilian Snake-necked Turtle
- Brazilian Three-banded Armadillo
- Brazilian Three-toed Sloth
- Brazoria Crayfish
- Brazos River Watersnake
- Breasts-of-Julie Frog
- Breedlove's Anole
- Brenton Blue Butterfly
- Breyer's Long-tailed Seps
- Brick Seamoth
- Bridges's Degu
- Bridled Nail-tailed Wallaby
- Bridled White-eye
- Bridouxia ponsonbyi
- Bridouxia praeclara
- Brigalow Scaly-foot
- Brindle Bass
- Brine Shrimp
- Bristle-thighed Curlew
- Bristle-tipped Sanddargon
- Bristled Grassbird
- Broad River Spiny Crayfish
- Broad Sea Fan
- Broad-fingered Crayfish
- Broad-headed Snake
- Broad-snouted Caiman
- Broad-striped Dasyure
- Broad-striped Mongoose
- Broad-tailed Grassbird
- Broad-toothed Mouse
- Broadfoot Climbing Salamander
- Broadley's Mountain Frog
- Broadley's Ridged Frog
- Broadnose Wedgefish
- Bromeliad Treefrog
- Brongersma's Toad
- Bronze Quoll
- Bronze Tube-nosed Bat
- Bronze Whaler
- Bronzeback Snake-lizard
- Bronzed Frog
- Brook Elimia
- Brook Snake
- Brooks's Dyak Fruit Bat
- Broom Hare
- Brother's Island Tuatara
- Brown Bear
- Brown Eared Pheasant
- Brown False Brook Salamander
- Brown Fulvetta
- Brown Hyena
- Brown Madagascar Frog
- Brown Mesite
- Brown Palm Civet
- Brown Pelican
- Brown Robber Frog
- Brown Stingray
- Brown Tanager
- Brown Teal
- Brown Tropical Frog
- Brown Wood-rail
- Brown's Hutia
- Brown-backed Dove
- Brown-backed Flowerpecker
- Brown-backed Parrotlet
- Brown-banded Antpitta
- Brown-cheeked Hornbill
- Brown-chested Jungle-flycatcher
- Brown-headed Crow
- Brown-headed Spider Monkey
- Brown-marbled Grouper
- Brown-reticulate Stingray
- Brown-spotted Catshark
- Brown-spotted Rockcod
- Brown-tailed Mongoose
- Brown-winged Kingfisher
- Brownband Numbfish
- Brownstriped Grunt
- Bruijn's Brush-turkey
- Bruijn's Pogonomelomys
- Brumback's Night Monkey
- Bruneau Hot Springsnail
- Brush-tailed Phascogale
- Brush-tailed Rabbit Rat
- Brush-tailed Rat-kangaroo
- Brush-tailed Rock Wallaby
- Bryant's Woodrat
- Bryophryne bustamantei
- Bryophryne cophites
- Bubble Coral (Plerogyra discus)
- Bubble-nest Frog
- Buckley's Giant Glass Frog
- Buea Smalltongue Toad
- Buena Vista Lake Ornate Shrew
- Buenaventura Robber Frog
- Buenos Aires Leaf-eared Mouse
- Buettikofer's Shrew
- Buff-breasted Buttonquail
- Buff-breasted Sandpiper
- Buff-breasted Tody-tyrant
- Buff-browed Chachalaca
- Buff-headed Capuchin
- Buff-necked Woodpecker
- Buff-throated Purpletuft
- Buff-throated Tody-tyrant
- Buff-vented Bulbul
- Buffetia retinaculum
- Buffy-fronted Seedeater
- Buffy-headed Marmoset
- Bugun Liocichla
- Bulgarian Emerald
- Bulinus camerunensis
- Bulinus hightoni
- Bulinus mutandensis
- Bulinus nyassanus
- Bulinus succinoides
- Bulinus transversalis
- Buller's Albatross
- Buller's Chipmunk
- Buller's Shearwater
- Bullocks Mountains False Toad
- Bullseye Electric Ray
- Bulmer's Fruit Bat
- Bulo Burti Bush-shrike
- Bumblebee Bat
- Bumphead Parrotfish
- Bunawan Wart Frog
- Bunn's Short-tailed Bandicoot Rat
- Burmagomphus sivalikensis
- Burmeister's Armadillo
- Burmese Peacock Softshell Turtle
- Burmese Peacock Turtle
- Burmese Roofed Turtle
- Burmese Starred Tortoise
- Burnsville Cove Cave Amphipod
- Burnup's Hunter Slug
- Burnupia crassistriata
- Burnupia stuhlmanni
- Burrowes' Giant Glass Frog
- Burrowing Bog Crayfish
- Burrowing Crayfish (Engaeus australis)
- Burrowing Grainy Frog
- Burrowing Vole
- Burt's Deer Mouse
- Burton's Vlei Rat
- Buru Cuckooshrike
- Buru Opalescent Birdwing
- Buru Thrush
- Bush Blackcap
- Bush Dog
- Bush Thick-knee
- Bushoho Reed Frog
- Busuanga Wart Frog
- Butler's Dunnart
- Buttons Rivulet Freshwater Snail
- Buxton's Jird
- Buzzing Frog
- Bythinella badensis
- Bythinella bavarica
- Bythinella bicarinata
- Bythinella compressa
- Bythinella cylindrica
- Bythinella dunkeri
- Bythinella padiraci
- Bythinella viridis
- Bythiospeum acicula
- Bythiospeum articense
- Bythiospeum bourguignati
- Bythiospeum cisterciensorum
- Bythiospeum garnieri
- Bythiospeum geyeri
- Bythiospeum noricum
- Bythiospeum pfeifferi
- Bythiospeum quenstedti
- Bythiospeum reisalpense
- Bythiospeum sandbergeri
- Bythiospeum tschapecki
- Caalaya Andes Frog
- Caatinga Antwren
- Cabo Cruz Frog
- Cabot's Tragopan Pheasant
- Cabrera's Hutia
- Cabrera's Vole
- Cacao Shadowdamsel
- Cachorrito Cabezon
- Cachorrito De Charco Azul
- Cachorrito De Dorsal Larga
- Cachorrito De Mezquital
- Cachorrito Enano De Potosi
- Caddo Madtom
- Caddo Mountain Salamander
- Caecocypris basimi
- Caerulean Paradise Flycatcher
- Cagle's Map Turtle
- Cahaba Shiner
- Cahow
- Cainarachi Poison Frog
- Cairns Rainbowfish
- Cajamarca Water Frog
- Calamoecia australica
- Calamoecia elongata
- Calamoecia zeidleri
- Calayan Rail
- Calconiscellus gotscheensis
- Caldwellia imperfecta
- Calf Frog
- Calico Grouper
- Calientes Water Frog
- California Bay Pea Crab
- California Condor
- California Freshwater Shrimp
- California Giant Salamander
- California Red Tree Mouse
- California Red-legged Frog
- California Sheephead
- California Tiger Salamander
- Callippe Silverspot Butterfly
- Callulina kisiwamsitu
- Callulops kopsteini
- Calopteryx exul
- Calopteryx hyalina
- Calopteryx syriaca
- Calvert's Emerald
- Cambarus strigosus
- Cambodian Laughingthrush
- Cameron Highlands Niviventer
- Cameroon Clawless Otter
- Cameroon Climbing Mouse
- Cameroon Egg Frog
- Cameroon Montane Greenbul
- Cameroon Range Night Frog
- Cameroon Slippery Frog
- Cameroon Soft-furred Mouse
- Cameroon Toad
- Cameroon Water Frog
- Cameroon Wolterstorff Toad
- Cameroonian Forest Shrew
- Cameroonian Shrew
- Camiguin Forest Mouse
- Camiguin Forest Rat
- Camouflage Grouper
- Camp Shelby Burrowing Crayfish
- Campbell Albatross
- Campbell Island Shag
- Campbell Island Teal
- Campbell's Forest Toad
- Campeche Spiny-tailed Iguana
- Campo Grande Button Frog
- Campo Grande Treefrog
- Campo Miner
- Camponotus universitatis
- CamRiver Freshwater Snail
- Camron Climbing Salamander
- Canarian Black Oystercatcher
- Canarian Shrew
- Canary Big-eared Bat
- Canary Islands Large White
- Canasi Frog
- Candidula setubalensis
- Canebrake Groundcreeper
- Cannatella's Andes Frog
- Cannatella's Plump Toad
- Cantareus mazzullii
- Canterbury Mudfish
- Cantharellus noumeae
- Canthigaster rapaensis
- Canthocamptus dedeckkeri
- Canthocamptus echinopyge
- Canthocamptus longipes
- Canthocamptus mammillifurca
- Canthocamptus sublaevis
- Canthocamptus tasmaniae
- Cantor's Giant Softshell
- Canut's Horseshoe Bat
- Cape Caco
- Cape Cormorant
- Cape Fear Shiner
- Cape Flats Frog
- Cape Gannet
- Cape Melville Treefrog
- Cape Platanna
- Cape Sable Seaside Sparrow
- Cape Seahorse
- Cape Shark
- Cape Stag Beetle (Colophon barnardi)
- Cape Thorntail
- Cape Verde Shearwater
- Cape Verde Warbler
- Cape Vulture
- Cape York Rock Wallaby
- Caper Elimia
- Capoeta antalyensis
- Capped Langur
- Captain Fine
- Carabaya Stubfoot Toad
- Carabo Beetle
- Carabobo Climbing Salamander
- Carbonell's Wall Lizard
- Carbonera Pupfish
- Carchi Andes Frog
- Carchi Andes Toad
- Carchi Rocket Frog
- Cardiocondyla zoserka
- Caribbean Coot
- Caribbean Electric Ray
- Caribbean Reef Shark
- Carinotrachia carsoniana
- Carinurella paradoxa
- Carmen Mountain Shrew
- Carolina Heelsplitter
- Caroline Islands Ground-dove
- Carpentarian False Antechinus
- Carpentarian Grasswren
- Carpentarian Rock Rat
- Carpetane Rock Lizard
- Carphish Frog
- Carpione Del Garda
- Carrizal Seedeater
- Carson Wandering Skipper
- Cartago Knobtail
- Cartago Worm Salamander
- Carunculated Fruit-dove
- Carvalho's Slider
- Carvalhoi Tree Toad
- Cascade Cave Amphipod
- Cascade Caverns Salamander
- Cascade Torrent Salamander
- Cascade Tree Frog
- Cascades Frog
- Caseolus calculus
- Caseolus commixtus
- Caseolus subcalliferus
- Caspian Lamprey
- Caspian Seal
- Cassin's Finch
- Castalia martensi
- Castillon Robber Frog
- Cat Island Turtle
- Cat's Eye Cynarina Coral
- Cataglyphis hannae
- Catalina Deer Mouse
- Catalina Mountain Snail
- Catamarca Water Frog
- Cataract Gorge Freshwater Snail
- Cataract Gorge Snail
- Cataract Hooktail
- Catshark
- Catspaw Pearlymussel
- Cauca Guan
- Cauca Poison Frog
- Cauca Rocket Frog
- Caucasian Birch Mouse
- Caucasian Black Grouse
- Caucasian Mountain Ground Squirrel
- Caucasian Salamander
- Caucasian Viper
- Caulastrea connata
- Caulastrea curvata
- Caulastrea echinulata
- Caulastrea tumida
- Cauliflower Coral (Pocillopora ankeli)
- Cave Catfish
- Cave Physa
- Cave Spikethumb Frog
- Cave Squeaker Frog
- Cave Tropical Night Lizard
- Cave Wrinkled Ground Frog
- Cayenne Stubfoot Toad
- Cayey Robber Frog
- Cayman Island Ground Iguana
- Cayman Islands Ground Iguana
- Cebu Flowerpecker
- Cecilioides connollyi
- Cecilioides eulima
- Cedros Island Mule Deer
- Ceiba Stream Frog
- Celaque Climbing Salamander
- Celebes Crested Macaque
- Celebes Cross Frog
- Celebes Tortoise
- Celestial Monarch
- Central American River Turtle
- Central American Snapping Turtle
- Central American Tapir
- Central Coast Stubfoot Toad
- Central Humming Frog
- Central Kashmir Vole
- Central Missouri Cave Amphipod
- Central Rock Rat
- Central Sulawesi Echiothrix
- Centrolene mariaelenae
- Centrolene robledoi
- Cephalaeschna acutifrons
- Cephalakompsus pachycheilus
- Cerambyx Longicorn
- Ceratophallus socotrensis
- Ceres Featherlegs
- Cerion nanus
- Ceron's Glass Lizard
- Cerro de Enmedio Moss Salamander
- Cerro Munchique Marsupial Frog
- Cerro Pando Salamander
- Cerro Pando Worm Salamander
- Cerro Pital Salamander
- Cerro Pozo de Agua Moss Salamander
- Cerro Saslaya Moss Salamander
- Cerulean Warbler
- Ceuthonectes rouchi
- Ceylon Jungle Shrew
- Ceylon Pygmy Shrew
- Ceylon Spiny Mouse
- Ceylon Streamlined Frog
- Ceylonthelphusa alpina
- Ceylonthelphusa armata
- Ceylonthelphusa callista
- Ceylonthelphusa cavatrix
- Ceylonthelphusa diva
- Ceylonthelphusa durrelli
- Ceylonthelphusa kandambyi
- Ceylonthelphusa kotagama
- Ceylonthelphusa nana
- Ceylonthelphusa nata
- Ceylonthelphusa orthos
- Ceylonthelphusa sanguinea
- Ceylonthelphusa savitriae
- Ceylonthelphusa venusta
- Chaceus ibiricensis
- Chaco Side-necked Turtle
- Chaco Water Frog
- Chacoan Naked-tailed Armadillo
- Chacoan Peccary
- Chacoan Pygmy Opossum
- Chaetodon obliquus
- Chalazodes Bubble-nest Frog
- Chalcides simonyi
- Chalepoxenus brunneus
- Chalepoxenus kutteri
- Chalepoxenus muellerianus
- Chalepoxenus spinosus
- Chalepoxenus tarbinskii
- Chalepoxenus tauricus
- Chalepoxenus tramieri
- Chalepoxenus zabelini
- Chamula Mountain Brook Frog
- Chaney's Spiny Lizard
- Chantaburi Bug-eyed Frog
- Chapa Bug-eyed Frog
- Chapa Spiny Frog
- Chapin's Flycatcher
- Chapin's Mountain-babbler
- Chapman's Prehensile Tailed Hutia
- Charadrahyla nephila
- Charal De Alchichica
- Charal De La Preciosa
- Charal De Quechulac
- Charalito Chihuahua
- Charalito Saltillo
- Charalito Sonorense
- Charazani Treefrog
- Charles Darwin's Eastern Frog
- Charming Thicket Rat
- Charta Treefrog
- Chat Tanager
- Chatham Albatross
- Chatham Island Black Robin
- Chatham Island Pied Oystercatcher
- Chatham Island Pigeon
- Chatham Island Snipe
- Chatham Islands Shag
- Chatham Parakeet
- Chatham Petrel
- Chathams Galaxias
- Chatooga Crayfish
- Chattahoochee Crayfish
- Chattering Lory
- Cheat Mountain Salamander
- Checkered Pupfish
- Checkered Sengi
- Cheer Pheasant
- Cheetah
- Cheoah Bald Salamander
- Cherokee Clubtail
- Cherry-throated Tanager
- Chestnut Antpitta
- Chestnut Seedeater
- Chestnut Wood-quail
- Chestnut-backed Buttonquail
- Chestnut-backed Laughingthrush
- Chestnut-backed Owlet
- Chestnut-backed Thornbird
- Chestnut-backed Thrush
- Chestnut-banded Plover
- Chestnut-bellied Cotinga
- Chestnut-bellied Flowerpiercer
- Chestnut-bellied Guan
- Chestnut-bellied Hummingbird
- Chestnut-bellied Imperial-pigeon
- Chestnut-bellied Kingfisher
- Chestnut-bellied Malkoha
- Chestnut-breasted Partridge
- Chestnut-breasted Whiteface
- Chestnut-capped Piha
- Chestnut-capped Thrush
- Chestnut-collared Longspur
- Chestnut-eared Laughingthrush
- Chestnut-headed Partridge
- Chestnut-naped Forktail
- Chestnut-necklaced Partridge
- Chestnut-rumped Babbler
- Chestnut-throated Spinetail
- Chestnut-winged Whistling-thrush
- Chevron Skink
- Chevron-breasted Babbler
- Chevron-spotted Brown Frog
- Chiala Mountain Salamander
- Chiapan Climbing Rat
- Chiapan Deer Mouse
- Chiapan Pigmy Anole
- Chickamanga Crayfish
- Chignahuapan Splayfoot Salamander
- Chihuahuan Deer Mouse
- Chihuahuan Fringe-toed Lizard
- Chile Darwin's Frog
- Chile Mountains False Toad
- Chilean Caenolestid
- Chilean Dolphin
- Chilean Flamingo
- Chilean Woodstar
- Chili Water Frog
- Chiloglanis lufirae
- Chiloglanis ruziziensis
- Chimalapa Toad
- Chimanimani Stream Frog
- Chimbo Rocket Frog
- Chimpanzee
- Chinamococh Stream Frog
- Chinanteco Deer Mouse
- Chinese Alligator
- Chinese Bahaba
- Chinese Broad-headed Pond Turtle
- Chinese Crested Tern
- Chinese Egret
- Chinese Giant Salamander
- Chinese Goral
- Chinese Grouse
- Chinese Lazy Toad
- Chinese Monal Pheasant
- Chinese Paddlefish
- Chinese Pangolin
- Chinese River Dolphin
- Chinese Salamander
- Chinese Serow
- Chinese Soft-shelled Turtle
- Chinese Stripe-necked Turtle
- Chinese Sturgeon
- Chinese Three-keeled Pond Turtle
- Chinese Three-striped Box Turtle
- Chinese Water Deer
- Chinhai Spiny Newt
- Chinook Salmon
- Chipola Slabshell
- Chiricahua Leopard Frog
- Chirinda Toad
- Chiriquita Shadowdamsel
- Chirocephalus croaticus
- Chirocephalus pelagonicus
- Chirocephalus reiseri
- Chisholm Trail Salamander
- Chiszar's Arboreal Alligator Lizard
- Chitwan Frog
- Chlorocnemis abbotti
- Chlorocnemis montana
- Chlorocnemis pauli
- Chlorocypha bambtoni
- Chlorocypha jacksoni
- Chlorocypha molindica
- Chlorocypha schmidti
- Chlorogomphus iriomotensis
- Chlorogomphus okinawensis
- Choco Broad-nosed Bat
- Choco Poorwill
- Choco Stubfoot Toad
- Choco Tinamou
- Choco Toad
- Choco Vireo
- Choco Woodpecker
- Choctaw Riverlet Crayfish
- Chondrina oligodonta
- Chondrostoma beysehirense
- Chondrostoma kinzelbachi
- Chondrostoma knerii
- Chondrostoma meandrense
- Chondrostoma phoxinus
- Chondrostoma prespense
- Chondrostoma soetta
- Chondrostoma vardarense
- Chornaya Gudgeon
- Chortipphus acroleucus
- Christian's Marsupial Frog
- Christianoconcha quintalia
- Christmas Hawk-owl
- Christmas Island Blind Snake
- Christmas Island Frigatebird
- Christmas Island Goshawk
- Christmas Island Imperial Pigeon
- Christmas Island Pipistrelle
- Christmas Island Shrew
- Christmas Island White-eye
- Chrysoritis cotrelli
- Chunyi
- Chuuk Monarch
- Cicek Minnow
- Cienega Colorado Worm Salamander
- Ciervo Scarab Beetle
- Ciliellopsis oglasae
- Cinderella Waxbill
- Cinereous Bunting
- Cinereous Vulture
- Cinereous Warbling-finch
- Cinnabar Hawk-owl
- Cinnamon-banded Kingfisher
- Cinnamon-breasted Tody-tyrant
- Cinnamon-headed Green-pigeon
- Cinnamon-rumped Trogon
- Cinnamon-tailed Fantail
- Cinnamon-tailed Sparrow
- Cinnamon-vented Piha
- Cinquefoil Skipper
- Cipo Canastero
- Cirolanid Isopod
- Clanton's Cave Amphipod
- Clanwilliam Rock Catfish
- Clanwilliam Sandfish
- Clanwilliam Yellowfish
- Clapper Rail
- Clarence Galaxias
- Clarence River Cod
- Clarendon Parish Robber Frog
- Clariallabes mutsindoziensis
- Clarias maclareni
- Clarion Island Whip Snake
- Clarion Wren
- Clarke's Gazelle
- Clarke's Weaver
- Clavator moreleti
- Clawtoed False Brook Salamander
- Claytons Rivulet Freshwater Snail
- Clear Creek Gambusia
- Clear-winged Woolly Bat
- Cleft-headed Juliomys
- Clench's Middle-toothed Land Snail
- Cleopatra cridlandi
- Cleopatra exarata
- Cliff Robber Frog
- Clifton Cave Isopod
- Climbing Mantella
- Clinothelphusa kakoota
- Closed Brain Coral
- Cloud Forest Parrot Snake
- Cloud Forest Rice Rat
- Cloud Forest Salamander
- Cloud Forest Stream Frog
- Cloud Forest Treefrog
- Cloud-forest Pygmy-owl
- Cloud-forest Screech-owl
- Clouded Leopard
- Clouded Salamander
- Cloven-feathered Dove
- Clubnose Guitarfish
- Clubshell
- Clupeonella abrau
- Coachelia Giant Sand Treader Cricket
- Coachella Valley Fringe-toed Lizard
- Coachella Valley Jerusalem Cricket
- Coahuila Collared Lizard
- Coahuila Isopod
- Coahuilix De Hubbs Snail
- Coal Elimia
- Coal-crested Finch
- Coalcolman Deer Mouse
- Coastal Black-handed Titi
- Coastal Ecuador Smoky Jungle Frog
- Coastal Flatwoods Crayfish
- Coastal Lowland Cave Crayfish
- Coastal Sheath-tailed Bat
- Coastal Stingaree
- Coban Climbing Salamander
- Cobb's Wren
- Cobitis arachthosensis
- Cobitis bilseli
- Cobitis calderoni
- Cobitis dalmatina
- Cobitis hellenica
- Cobitis illyrica
- Cobitis levantina
- Cobitis maroccana
- Cobitis meridionalis
- Cobitis narentana
- Cobitis paludica
- Cobitis puncticulata
- Cobitis punctilineata
- Cobitis stephanidisi
- Cobitis taurica
- Cobitis trichonica
- Cobitis turcica
- Cobitis vettonica
- Cobitis zanandreai
- Coccusa cristicervix
- Cocha Antshrike
- Cochabamba Grass Mouse
- Cochabamba Mountain-finch
- Cochabamba Water Frog
- Cochin Forest Cane Turtle
- Cochlostoma canestrinii
- Cochran Frog (Nymphargus anomalus)
- Cochran Frog (Nymphargus armatus)
- Cochran Frog (Nymphargus cochranae)
- Cochran Frog (Nymphargus garciae)
- Cochran Frog (Nymphargus griffithsi)
- Cochran Frog (Nymphargus ignotus)
- Cochran Frog (Nymphargus laurae)
- Cochran Frog (Nymphargus luminosus)
- Cochran Frog (Nymphargus megacheirus)
- Cochran Frog (Nymphargus posadae)
- Cochran Frog (Nymphargus prasinus)
- Cochran Frog (Nymphargus rosada)
- Cochran Frog (Nymphargus ruizi)
- Cochran Frog (Nymphargus siren)
- Cochran's False Brook Salamander
- Cochran's Running Frog
- Cochranella nola
- Cochranella punctulata
- Cochranella saxiscandens
- Cochranella susatamai
- Cochranella xanthocheridia
- Cock-tailed Tyrant
- Cocoharpinia iliffei
- Cocos Cuckoo
- Cocos Flycatcher
- Cocos Island Finch
- Coelacanth
- Coenagriocnemis insularis
- Coenagrion syriacum
- Coffin Cave Mold Beetle
- Cofre de Perote Salamander
- Coho Salmon
- Coiban Agouti
- Coimbra-filho's Titi Monkey
- Cokendolpher Cave Harvestman
- Colan Water Frog
- Colares Stingray
- Coldwater Darter
- Colima Warbler
- Collared Brown Lemur
- Collared Crow
- Collared Delma
- Collared Laughingthrush
- Collared Petrel
- Collins' Poison Frog
- Colombian Backpack Frog
- Colombian Beaked Toad
- Colombian Black-handed Titi
- Colombian Electric Ray
- Colombian Giant Toad
- Colombian Mountain Grackle
- Colombian Night Monkey
- Colombian Screech-owl
- Colombian Weasel
- Colombian Woolly Monkey
- Colonia Robber Frog
- Colorado Checkered Whiptail
- Colorado Desert Fringe-toed Lizard
- Colorado Grouper
- Colorado Pikeminnow
- Colorful Puffleg
- Colostethus awa
- Colostethus mertensi
- Columbia Clubtail
- Columbia River Tiger Beetle
- Columbia Torrent Salamander
- Comal Blind Salamander
- Comal Springs Dryopid Beetle
- Comal Springs Riffle Beetle
- Comanche Springs Pupfish
- Comb Grouper
- Commerson's Leaf-nosed Bat
- Common Bentwing Bat
- Common Brown Lemur
- Common Guitarfish
- Common Hippopotamus
- Common Lazy Toad
- Common Madagascar Frog
- Common Mist Frog
- Common Moorhen
- Common Sawfish
- Common Seadragon
- Common Seahorse
- Common Shovelnose Ray
- Common Splayfoot Salamander
- Common Tortoise
- Common Tree Frog
- Common Woolly Monkey
- Common Yabby
- Comoro Black Flying Fox
- Comoro Friar
- Comoro Olive-pigeon
- Comoro Rousette
- Complex-toothed Flying Squirrel
- Conant's False Brook Salamander
- Conant's Salamander
- Conasauga Blue Burrower
- Conasauga Logperch
- Concave-eared Odorous Frog
- Concentrated Snail
- Concho Water Snake
- Conchos Shiner
- Condorir's Andes Frog
- Condoto Stubfoot Toad
- Cone Shell (Conus africanus)
- Cone Shell (Conus cepasi)
- Cone Shell (Conus nobrei)
- Cone Shell (Conus zebroides)
- Cone-billed Tanager
- Confusing Toad
- Congo Bay-owl
- Congo Blackfin
- Congo Peafowl
- Congo Shrew
- Conservancy Fairy Shrimp
- Continental Divide Treefrog
- Contulmo Ground Frog
- Cooco Andes Frog
- Cook Islands Fruit-dove
- Cook Islands Reed-warbler
- Cook's Hocicudo
- Cook's Petrel
- Cook's Robber Frog
- Cookeconcha contorta
- Cooloola Sedgefrog
- Cooper's Black Caecilian
- Cooper's Cave Amphipod
- Coosa Moccasinshell
- Coosa Pebblesnail
- Coosawattae Crayfish
- Copadichromis atripinnis
- Copadichromis boadzulu
- Copadichromis conophorus
- Copadichromis cyclicos
- Copadichromis geertsi
- Copadichromis mbenji
- Copadichromis nkatae
- Copadichromis thinos
- Copadichromis trewavasae
- Copadichromis verduyni
- Copan Brook Frog
- Copan Stream Frog
- Copan Treefrog
- Cope's Brown Treefrog
- Cope's Mountain Meadow Snake
- Copper Pheasant
- Copper Redhorse
- Copper-tailed Glossy-starling
- Coppercheek Darter
- Coppery-bellied Puffleg
- Coppery-chested Jacamar
- Coquerel's Giant Mouse Lemur
- Coquerel's Sifaka
- Coral Catshark
- Coral Trout
- Cordelia's Crow
- Cordillera Central Salamander
- Cordillera Central Treefrog
- Cordillera Talamanca Salamander
- Cordoba Escuerzo
- Cordoba Toad
- Corfu Toothcarp
- Corncrake
- Coronados Deer Mouse
- Corpulent Hornsnail
- Corroboree Frog
- Corrollton Crayfish
- Corsican Hare
- Corsican Painted Frog
- Corsican Swallowtail
- Cortes Salamander
- Coryphagrion grandis
- Coscinaraea hahazimaensis
- Costa Rica Brook Frog
- Costa Rican Variable Harlequin Toad
- Cotton-top Marmoset
- Cottus petiti
- Cotuero Toadfish
- Cougar
- Cousseau's Skate
- Cowan's Madagascar Frog
- Cowan's Mantella
- Cowfish
- Cox's Stefania Treefrog
- Cozumel Harvest Mouse
- Cozumel Thrasher
- Crab-eating Rat
- Cracking Pearlymussel
- Cralopa colliveri
- Crater Salamander
- Craugastor alfredi
- Craugastor anciano
- Craugastor andi
- Craugastor angelicus
- Craugastor aphanus
- Craugastor aurilegulus
- Craugastor azueroensis
- Craugastor berkenbuschii
- Craugastor bocourti
- Craugastor brocchi
- Craugastor catalinae
- Craugastor chac
- Craugastor charadra
- Craugastor coffeus
- Craugastor cruzi
- Craugastor cyanochthebius
- Craugastor daryi
- Craugastor decoratus
- Craugastor emcelae
- Craugastor emleni
- Craugastor epochthidius
- Craugastor fecundus
- Craugastor fleischmanni
- Craugastor glaucus
- Craugastor greggi
- Craugastor guerreroensis
- Craugastor gulosus
- Craugastor hobartsmithi
- Craugastor inachus
- Craugastor laevissimus
- Craugastor laticeps
- Craugastor lauraster
- Craugastor lineatus
- Craugastor matudai
- Craugastor megalotympanum
- Craugastor merendonensis
- Craugastor montanus
- Craugastor obesus
- Craugastor olanchano
- Craugastor omiltemanus
- Craugastor omoaensis
- Craugastor pechorum
- Craugastor persimilis
- Craugastor podiciferus
- Craugastor polymniae
- Craugastor pozo
- Craugastor psephosypharus
- Craugastor punctariolus
- Craugastor pygmaeus
- Craugastor ranoides
- Craugastor rhodopis
- Craugastor rhyacobatrachus
- Craugastor rivulus
- Craugastor rostralis
- Craugastor sabrinus
- Craugastor saltuarius
- Craugastor sandersoni
- Craugastor silvicola
- Craugastor spatulatus
- Craugastor stadelmani
- Craugastor stuarti
- Craugastor tabasarae
- Craugastor tarahumaraensis
- Craugastor taurus
- Craugastor trachydermus
- Craugastor uno
- Craugastor vulcani
- Craugastor xucanebi
- Craugastor yucatanensis
- Craveri's Murrelet
- Crawfish Frog
- Cream-banded Swallowtail
- Cream-bellied Fruit-dove
- Creamy-bellied Gnatcatcher
- Crematogaster atilanica
- Crematogaster pilosa
- Crenigomphus abyssinicus
- Crenigomphus denticulatus
- Crepidophryne chompipe
- Crescent Nail-tailed Wallaby
- Crescent-faced Antpitta
- Cresent Dune Scarab Beetle
- Crested Argus
- Crested Capuchin
- Crested Cuckoo-dove
- Crested Fireback
- Crested Genet
- Crested Honeycreeper
- Crested Jay
- Crested Partridge
- Crested Quail-dove
- Crested Shelduck
- Crested Tailed Deer Mouse
- Crestless Fireback
- Cretan Frog
- Cretan Spotted Darner
- Cretan White-toothed Shrew
- Crevice Tortoise
- Cricket Robber Frog
- Crimea Shemaya
- Crimean Tatar Goby
- Crimson Hawaiian Damselfly
- Crimson Shining-parrot
- Crimson-hooded Myzomela
- Crisp Pillow Coral
- Cristilabrum bubulum
- Cristilabrum buryillum
- Cristilabrum grossum
- Cristilabrum isolatum
- Cristilabrum monodon
- Cristilabrum primum
- Cristilabrum rectum
- Cristilabrum simplex
- Cristilabrum solitudum
- Crobett's Gap Bubble-nest Frog
- Crocidura hikmiya
- Crocker's Sea Snake
- Cromwell Chafer Beetle
- Cross-backed Bubble-nest Frog
- Crossband Rockfish
- Crossley's Dwarf Lemur
- Crossley's Ground-thrush
- Crow Honeyeater
- Crow Tiger
- Crown Shark
- Crowned Cormorant
- Crowned Lemur
- Crowned River Turtle
- Crowned Sifaka
- Crowned Solitary Eagle
- Crust Coral (Leptastrea aequalis)
- Crust Coral (Leptastrea bewickensis)
- Crust Coral (Leptastrea bottae)
- Crust Coral (Leptastrea inaequalis)
- Cruz's Treefrog
- Cryptazeca elongata
- Cryptazeca kobelti
- Cryptazeca monodonta
- Cryptazeca spelaea
- Cryptazeca subcylindrica
- Cryptopotamon anacoluthon
- Crystal Darter
- Crystal Siltsnail
- Ctenella chagius
- Ctenochromis aff. pectoralis
- Ctenomys rionegrensis
- Ctenophila caldwelli
- Ctenophila setiliris
- Ctenophila vorticella
- Cuatro Cienegas Shiner
- Cuatro Cienegas Slider
- Cuatro Cienegas Softshell Turtle
- Cuban Black Hawk
- Cuban Bluet
- Cuban Cave Shrimp
- Cuban Crocodile
- Cuban Evening Bat
- Cuban Greater Funnel-eared Bat
- Cuban High-crested Toad
- Cuban Hypolestes
- Cuban Kite
- Cuban Lesser Funnel-eared Bat
- Cuban Long-nosed Toad
- Cuban Parakeet
- Cuban Parrot
- Cuban Pine Toad
- Cuban Red-rumped Frog
- Cuban Small-eared Toad
- Cuban Solenodon
- Cuban Solitaire
- Cuban Sparrow
- Cuban Spotted Toad
- Cuban Yellow Bat
- Cubera Snapper
- Cuchumatanas Bromeliad Salamander
- Cucujus cinnaberinus
- Cui-ui
- Culata Climbing Salamander
- Culebra Island Giant Anole
- Culion Frog
- Culion Tree Squirrel
- Cumberland Bean Pearlymussel
- Cumberland Combshell
- Cumberland Dusky Salamander
- Cumberland Elktoe
- Cumberland Monkeyface Pearlymussel
- Cumberland Pigtoe
- Cundall's Robber Frog
- Cundinamarca Antpitta
- Cupedora evandaleana
- Cupedora nottensis
- Cuphead Skate
- Curacaoan Long-nosed Bat
- Curassanthura bermudensis
- Curry Shark
- Cuvier's Gazelle
- Cuvier's Hutia
- Cuyuja Robber Frog
- Cuzco Cochran Frog
- Cyanophrys bertha
- Cyathopoma randalana
- Cyclades Blunt-nosed Viper
- Cyclogomphus gynostylus
- Cylichnidia ovuliformis
- Cylindrical Lioplax Snail
- Cynotilapia axelrodi
- Cynotilapia zebroides
- Cyphastrea hexasepta
- Cypress Crayfish
- Cyprian Wild Sheep
- Cyprus Whip Snake
- Cyrano Spurdog
- Cyrtopodion amictopholis
- D'Abrera's Tiger
- D'Albertis's Ringtail
- D'entrecasteaux Archipelago Tree Mouse
- D'Orbigny's Tuco-tuco
- Dabry's Sturgeon
- Daggernose Shark
- Dahaoping Sucker Frog
- Dahl's Jird
- Dahl's Toad-headed Turtle
- Daiyun Sucker Frog
- Dakota Skipper
- Daleswanson's Poison Frog
- Dalhousie Goby
- Dalhousie Hardyhead
- Dalmatian Barbel-gudgeon
- Dalmatian Pelican
- Dalquest's Pocket Mouse
- Dama Ciega Blanca
- Dama Gazelle
- Damar Blue Flycatcher
- Damara Tern
- Dammerman's Wart Frog
- Damochlora millepunctata
- Damochlora spina
- Dancea rodriguezensis
- Dannatt's Tiger
- Danube Crested Newt
- Danube Salmon
- Dapitan Peak Bubble-nest Frog
- Dapple-throat
- Dardo De Conchos
- Darevsky's Viper
- Darien Small Eared Shrew
- Darien Stubfoot Toad
- Dark Bolo Mouse
- Dark Guest Ant
- Dark Knob-tipped Shadowdamselfly
- Dark Pigtoe
- Dark-backed Wood-quail
- Dark-brown Serotine
- Dark-rumped Swift
- Dark-tailed Laurel Pigeon
- Dark-tailed Tree Rat
- Dark-throated Oriole
- Dark-throated Seedeater
- Dark-winged Groundling
- Darkedged Splitfin
- Darling River Hardyhead
- Dartford Warbler
- Darwin's Fox
- Darwin's Frog
- Darwin's Rhea
- Dary's Burrowing Snake
- Dasyatis fluviorum
- Davao Cross Frog
- David's Spiny Bandicoot
- David's Tiger
- Davies' Tree Frog
- Day's Shrew
- Dayak Fruit Bat
- Dayang Newt
- Dayao Flying Frog
- De Filippi's Petrel
- De Graaff's Praomys
- de l'Isalo Madagascar Frog
- De Winton's Golden Mole
- Decary's Madagascar Frog
- Deccan Wrinkled Frog
- Decken's Horseshoe Bat
- Deckenia imitatrix
- Deckenia mitis
- Deepwater Jack
- Deepwater Spiny Dogfish
- Definitive Leaf-eared Mouse
- Degodi Lark
- Dekeyser's Nectar Bat
- Del Norte Salamander
- Delacour's Langur
- Delany's Swamp Mouse
- Delaware County Cave Crayfish
- Delectable Soft-furred Mouse
- Delhi Sands Flower-loving Fly
- Delicate Deer Mouse
- Delmarva Peninsula Fox Squirrel
- Delminichthys adspersus
- Delminichthys ghetaldii
- Delminichthys jadovensis
- Delminichthys krbavensis
- Delta Green Ground Beetle
- Delta Smelt
- Demonic Poison Frog
- Dendropsophus gryllatus
- Denham's Bustard
- Dennis' Chirping Frog
- Dense Hydrobe
- Dere Kayasi
- Dermogenys weberi
- Deroceras tarraceuse
- Deronectes aljibensis
- Deronectes depressicollis
- Deronectes ferrugineus
- Desert Bandicoot
- Desert Dace
- Desert Monitor
- Desert Monkey Grasshopper
- Desert Pocket Gopher
- Desert Pupfish
- Desert Rain Frog
- Desert Rat-kangaroo
- Desert Slender Salamander
- Desert Tortoise
- Desert Viper
- Desperate Shrew
- Devil Fish
- Devil's Hole Pupfish
- Devil's River Minnow
- Devil's Sinkhole Amphipod
- Dhole
- Diademed Plover
- Diademed Sifaka
- Diamond Firetail
- Dian's Tarsier
- Diana Monkey
- Dianchi Bullhead
- Dianchi Carp
- Diard's Trogon
- Diastole tenuistriata
- Dibbler
- Dickey's Deer Mouse
- Dickson's Copper
- Dieterlen's Brush-furred Mouse
- Dikume
- Dime Forest Treefrog
- Diminutive Amphipod
- Diminutive Clubtail
- Diminutive Forest Frog
- Diminutive Wood Rat
- Dinagat Bushy-tailed Cloud Rat
- Dinagat Gymnure
- Dinagat Hairy-tailed Rat
- Dinelli's Doradito
- Dingiso
- Dinotopterus cunningtoni
- Dionda dichroma
- Dip Falls Freshwater Snail
- Diplodon dunkerianus
- Diplodon expansus
- Diplodon fontaineanus
- Diplodon pfeifferi
- Diplommatina cacuminulus
- Diplommatina madaiensis
- Disa
- Disc-fingered Reed Frog
- Discula bicarinata
- Discula bulweri
- Discula cheiranthicola
- Discula echinulata
- Discula leacockiana
- Discula lyelliana
- Discula oxytropis
- Discula tabellata
- Discula tectiformis
- Discula testudinalis
- Discula tetrica
- Discula turricula
- Discus guerinianus
- Distichodus petersii
- Distocambarus devexus
- Distocambarus youngineri
- Ditropis whitei
- Divellomelon hillieri
- Dixon's Ground Snake
- Dizangue Reed Frog
- Dja River Warbler
- Djibouti Francolin
- Djikoro Wart Frog
- Doflein's Salamander
- Doimon doichiangdao
- Doimon doisutep
- Doiran Bleak
- Dolapex amiculus
- Dolloff Cave Spider
- Domed Ancylid
- Dominican Myotis
- Donkey Fish
- Donnelly's Knobtail
- Dorcas Gazelle
- Doria's Goshawk
- Doria's Tree Kangaroo
- Dorias Tree-kangaroo
- Doris' Poison Frog
- Doronomyrmex goesswaldi
- Doronomyrmex kutteri
- Doronomyrmex pacis
- Doronomyrmex pocahontas
- Dorymyrmex insanus
- Dot-winged Crake
- Dotted Grainy Frog
- Dotted Lazy Toad
- Douc Langur
- Doumergue's Fringe-fingered Lizard
- Doumergue's Skink
- Dracula Ant
- Draparnaudia anniae
- Draparnaudia subnecata
- Draughtboard Shark
- Drill
- Dring's Asian Toad
- Dring's Borneo Frog
- Dring's Grainy Frog
- Dring's Horned Frog
- Dromedary Pearlymussel
- Dryad Monkey
- Dryland Mouse Opossum
- Drymaeus acervatus
- Drymaeus henseli
- Du Toit's Torrent Frog
- Dubois' Bubble-nest Frog
- Dubois' Paa Frog
- Duchess Lorikeet
- Duck-billed Buntingi
- Duck-billed Golden-line Fish
- Duckbill Cat
- Duckwater Pyrg
- Dugong
- Duida Grass-finch
- Duke Of Bedford's Vole
- Dulit Flying Frog
- Dulit Frogmouth
- Dull-blue Flycatcher
- Dumb Gulper Shark
- Dumeril's Boa
- Dunes Sagebrush Lizard
- Dunmall's Snake
- Dunn's Climbing Salamander
- Dunn's Mud Turtle
- Dupont's Lark
- Dupontia levis
- Dupontia nitella
- Dupontia perlucida
- Dupontia poweri
- Dupucharopa millestriata
- Durangonella De Coahuila Snail
- Durga Das's Leaf-nosed Bat
- Dusky Fantail
- Dusky Friarbird
- Dusky Gopher Frog
- Dusky Grouper
- Dusky Hopping Mouse
- Dusky Leaf-monkey
- Dusky Mosaic-tailed Rat
- Dusky Starfrontlet
- Dusky Tetraka
- Dusky Wallaby
- Dusky-headed Brush-finch
- Dusky-striped Squirrel
- Duskytail Darter
- Duskytail Grouper
- Dussartius baeticus
- Duthie's Golden Mole
- Dutton's River Snail
- Dwarf Bharal
- Dwarf Bigeye Scraper
- Dwarf Bronze Gecko
- Dwarf Cassowary
- Dwarf Climbing Salamander
- Dwarf Coqui
- Dwarf Crag Lizard
- Dwarf Crocodile
- Dwarf False Brook Salamander
- Dwarf Flying Fox
- Dwarf Galaxias
- Dwarf Grass Frog
- Dwarf Gymnure
- Dwarf Honeyguide
- Dwarf Hutia
- Dwarf Inanga
- Dwarf Jay
- Dwarf Loach
- Dwarf Musk Deer
- Dwarf Olive Ibis
- Dwarf Pebblesnail
- Dwarf Pygmy Goby
- Dwarf Red Brocket Deer
- Dwarf River Crab
- Dwarf Sawfish
- Dwarf Splayfoot Salamander
- Dwarf Tinamou
- Dwarf Wedgemussel
- Dytiscus latissimus
- Ear-spot Squirrel
- Eared Quetzal
- Earless Toad
- Earthworm
- East African Highland Shrew
- East African Little Collared Fruit Bat
- East Coast Akalat
- East-coast Free-tailed Bat
- Easter Island Butterflyfish
- Eastern Angel Shark
- Eastern Barred Bandicoot
- Eastern Black Crested Gibbon
- Eastern Bristlebird
- Eastern Cape Redfin
- Eastern Cape Rocky
- Eastern Carpathian Golden Loach
- Eastern Crested Toad
- Eastern Fox Snake
- Eastern Gorilla
- Eastern Hoolock Gibbon
- Eastern Imperial Eagle
- Eastern Jerboa Marsupial
- Eastern Long-beaked Echidna
- Eastern Longnose Spurdog
- Eastern Owl Frog
- Eastern Puna Mouse
- Eastern Quoll
- Eastern Rufous Mouse Lemur
- Eastern Sand Darter
- Eastern Sawshark
- Eastern Shovelnose Stingaree
- Eastern Squeaker
- Eastern Tur
- Eaton's Pintail
- Ebner's Skink
- Echinomorpha nishihirai
- Echinophyllia costata
- Echinopora ashmorensis
- Echinopora forskaliana
- Echinopora fruticulosa
- Echinopora horrida
- Echinopora mammiformis
- Echinopora pacificus
- Echinopora robusta
- Echinopora taylorae
- Ecnomiohyla miliaria
- Ecnomiohyla phantasmagoria
- Ecuador Horned Treefrog
- Ecuador Leaf Frog
- Ecuadoran Spiny Pocket Mouse
- Ecuadorean Grass Mouse
- Ecuadorian Blue Glass Frog
- Ecuadorian Piedtail
- Ecuadorian Sac-winged Bat
- Ecuadorian Tapaculo
- Edgbaston Goby
- Edisto Crayfish
- Edmund's Snaketail
- Edough Ribbed Newt
- Edward's Pheasant
- Edwards' Rocket Frog
- Efulen Water Frog
- Egg-carrying Buntingi
- Egyptian Tortoise
- Egyptian Vulture
- Eileen's Robber Frog
- Eisentraut's Mouse Shrew
- Eisentraut's Shrew
- Eisentraut's Striped Mouse
- El Carrizo Deer Mouse
- El Chape Toad
- El Cusuco Salamander
- El Empalme Worm Salamander
- El Muerto Side-blotched Lizard
- El Oro Parakeet
- El Pepino Treefrog
- El Rincon Stream Frog
- El Segundo Blue Butterfly
- El Tambo Stubfoot Toad
- El Tovar Glass Frog
- Elaphoidella amabilis
- Elaphoidella franci
- Elaphoidella jeanneli
- Elaphoidella kieferi
- Elasmias cernicum
- Elasmias kitaiwojimanum
- Elattoneura pasquinii
- Eld's Browantlered Deer
- Electra's Tree-nymph
- Elegance Coral
- Elegant Madagascar Frog
- Elegant Malachite
- Elegant Margaretamys
- Elegant Scops-owl
- Elegant Stubfoot Toad
- Elegant Sunbird
- Elegant Tern
- Eleotris pellegrini
- Elepaio
- Elevated Spring Amphipod
- Elfin-woods Warbler
- Elias' Atlantic Spiny-rat
- Elimia porrecta
- Elimia pybasi
- Elimia teres
- Elimia troostiana
- Elizabeth Springs Goby
- Elk River Crayfish
- Elk River File Snail
- Ellinopygosteos
- Elliot's Pheasant
- Elliptical Star Coral
- Elongate Bitterling
- Elongate Shadowdamsel
- Elongated Tortoise
- Elsalvadoria zurstrasseni
- Elusive Antpitta
- Elusive Sanddragon
- Elvira Rat
- Emerald Valvata
- Emerald-green Flying Frog
- Emily's Tuco-tuco
- Emma's Giant Rat
- Emperor Bird-of-paradise
- Emperor Goose
- Emperor Newt
- Emperor Rat
- Empire Cave Pseudoscorpion
- Emu River Freshwater Snail
- Enchanted Side-blotched Lizard
- Encheloclarias curtisoma
- Encheloclarias kelioides
- Encheloclarias prolatus
- Encheloclarias tapeinopterus
- Ender's Small-eared Shrew
- Endo's Pipistrelle
- Endodonta apiculata
- Engaewa similis
- Engelhardt's Climbing Salamander
- Enggano Scops-owl
- Enggano Thrush
- Enterprise Siltsnail
- Entre Rios Seedeater
- Eodiaptomus lumholtzi
- Eodiaptomus shihi
- Eoleptestheria spinosa
- Ephemeral Cave Amphipod
- Epilobocera haytensis
- Epilobocera wetherbeei
- Epimyrma adlerzi
- Epimyrma africana
- Epimyrma algeriana
- Epimyrma bernardi
- Epimyrma corsica
- Epimyrma goridaghini
- Epimyrma kraussei
- Epimyrma ravouxi
- Epimyrma stumperi
- Epimyrma tamarae
- Epimyrma zaleskyi
- Epirus Water Frog
- Epischura baikalensis
- Equatorial Dog-faced Bat
- Equatorial Graytail
- Erebia epistgyne
- Erebonectes nesioticus
- Erect-crested Penguin
- Erepta odontina
- Erepta stylodon
- Erikssonia acraeina
- Erlanger's Grassland Frog
- Erythrastrea flabellata
- Escambia Crayfish
- Eskimo Curlew
- Esmeraldas Woodstar
- Espada's Rocket Frog
- Espanola Mockingbird
- Estrada's Robber Frog
- Estuary Cod
- Ethiopian Amphibious Rat
- Ethiopian Banana Frog
- Ethiopian Bush-crow
- Ethiopian Highlander
- Ethiopian Thicket Rat
- Ethiopian Wolf
- Etigo Mole
- Etowah Crayfish
- Etowah Darter
- Eua zebrina
- Euchondrus ramonensis
- Eucrenonaspides oinotheke
- Euler's Flycatcher
- Eumeces dugesi
- Eungella Day Frog
- Eungella Tinker Frog
- Euonyma curtissima
- Euphrates Jerboa
- Euphrates Softshell Turtle
- Euphyllia paraglabrescens
- Euphyllia yaeyamaensis
- Eurasian Curlew
- Eurasian Otter
- Eurasian Peregrine Falcon
- European Bison
- European Eel
- European Ground Squirrel
- European Leaf-toed Gecko
- European Marbled Polecat
- European Mink
- European Mudminnow
- European Rabbit
- European Roller
- Everett's Flying Frog
- Everett's Thrush
- Everglade Snail Kite
- Everglades Sprite
- Ewaso Nyiro Labeo
- Exerodonta chimalapa
- Exerodonta xera
- Eye-ringed Tody-tyrant
- Eyeless Golden-line Fish
- Eyespot Skate
- Eyrean Grasswren
- Ezell's Cave Amphipod
- Fabaeformiscandona aemonae
- Fabulous Green Sphinx Moth
- Faichuk White-eye
- Faint-striped Opossum
- Fairy Pitta
- Fairy Tern
- Fairy Treefrog
- Falcated Duck
- Falcated Wren-babbler
- Falcon Toad
- Falkneri camerani
- Falls Reed Frog
- False Cienega Colorado Worm Salamander
- False Flower Coral (Anacropora matthai)
- False Pillow Coral
- False Shovelnose Sturgeon
- False Smooth Snake
- False Spike
- False Water Rat
- Fanged River Frog
- Fanshell
- Far Eastern Myotis
- Farmland Green Flying Frog
- Faro Island Treefrog
- Fastigo Whipping Frog
- Fat Pocketbook
- Fat Three-ridge Mussel
- Fat-nosed Spiny Rat
- Fat-whorled Pondsnai
- Father Basilio's Striped Mouse
- Father Schoenig's Chocolate
- Fatuhiva Monarch
- Fausto's Button Frog
- Fawn Hopping Mouse
- Fawn-breasted Thrush
- Fazil Lycian Salamander
- Fea's Muntjac
- Fea's Petrel
- Fearful Owl
- Fejervarya sahyadris
- Felder's Tiger
- Felten's Myotis
- Fenney Spring Hydrobe
- Fenouilia kreitneri
- Fernandez's Sword-nosed Bat
- Fernandina Galapagos Mouse
- Fernandina Island Galapagos Mouse
- Fernandina's Flicker
- Fernando Po Speirops
- Fernando's Giant Glass Frog
- Ferruginous Duck
- Ferruginous Partridge
- Fibreno Trout
- Fibulacamptus bisetosus
- Fibulacamptus gracilior
- Fiddlefish
- Field's Mouse
- Fiery Minivet
- Fiery Redfin
- Fiery-throated Fruiteater
- Fiji Crested Iguana
- Fiji Ground Frog
- Fiji Petrel
- Fiji Snake
- Fiji Tree Frog
- Fijian Blossom Bat
- Fijian Free-tailed Bat
- Fijian Monkey-faced Bat
- Fijji Banded Iguana
- File-tailed Ground Snake
- Finback Whale
- Finca Chibigui Salamander
- Findley's Myotis
- Fine-lined Pocketbook
- Fine-rayed Pigtoe Pearlymussel
- Finsch's Bulbul
- Finsch's Imperial-pigeon
- Fiordland Crested Penguin
- Fire Blue Hap
- Fire Salamander
- Fire-maned Bowerbird
- Firethroat
- Firschein's False Brook Salamander
- Fischer's Lovebird
- Fischer's Turaco
- Fish-eating Bat
- Fishing Cat
- Fisk's House Snake
- Fissi
- Fissuria boui
- Fitzroy River Turtle
- Fitzroy's Wood Frog
- Five-colored Barbet
- Five-keeled Spiny-tailed Iguana
- Flame Robin
- Flame-breasted Fruit-dove
- Flame-crowned Flowerpecker
- Flame-templed Babbler
- Flame-winged Parakeet
- Flapnose Houndshark
- Flapnose Ray
- Flat Pebblesnail
- Flat Pigtoe
- Flat-faced Seahorse
- Flat-headed Cat
- Flat-headed Galaxias
- Flat-headed Myotis
- Flat-headed Water Frog
- Flat-tailed Horned Lizard
- Flat-tailed Tortoise
- Flathead Knob-Scaled Lizard
- Flattened Musk Turtle
- Flaxen Elimia
- Fleay's Barred-frog
- Flightless Cormorant
- Flint's Knobtail
- Floreana Coral
- Floreana Mockingbird
- Florentino's Cuban Toad
- Flores Crow
- Flores Giant Tree Rat
- Flores Green-pigeon
- Flores Hanging-parrot
- Flores Hawk-eagle
- Flores Monarch
- Flores Scops-owl
- Flores Shrew
- Flores Tiger
- Flores Woolly Bat
- Florida Bog Frog
- Florida Bonneted Bat
- Florida Cave Amphipod
- Florida Cave Shrimp
- Florida Deermouse
- Florida Fairy Shrimp
- Florida Grasshopper Sparrow
- Florida Salt Marsh Vole
- Florida Sand Skink
- Florida Scrub Lizard
- Florida Scrub-jay
- Fluffy-backed Tit-babbler
- Fluminense Swallowtail
- Fluted Pebblesnail
- Fly River Grassbird
- Fly River Turtle
- Flying Earwig Hawaiian Damselfly
- Fonscochlea accepta
- Fonscochlea aquatica
- Fonscochlea billakalina
- Fonscochlea conica
- Foothill Elaenia
- Foothill Robber Frog
- Foothill Yellow-legged Frog
- Forbes's Blackbird
- Forest Banana Frog
- Forest Bittern
- Forest Ground-thrush
- Forest Madagascar Frog
- Forest Owlet
- Forest Rain Frog
- Forest Spikethumb Frog
- Forest Stubfoot Toad
- Forest Thicket Rat
- Forest Thrush
- Forester Freshwater Snail
- Fork-crowned Lemur
- Fork-tailed Pygmy-tyrant
- Forktail Lates
- Formica dirksi
- Formica talbotae
- Formicoxenus chamberlini
- Formicoxenus nitidulus
- Formicoxenus provancheri
- Formicoxenus quebecensis
- Formicoxenus sibiricus
- Formosan Woolly Horseshoe Bat
- Formosan Yellow-throated Marten
- Forth River Freshwater Snail
- Forty-spotted Pardalote
- Fossa
- Fossil Shark
- Fossorial Giant Rat
- Fountain Darter
- Four-digit Toad
- Four-eyed Frog
- Four-eyed Turtle
- Four-horned Antelope
- Four-spot Midget
- Four-striped Ground Squirrel
- Four-toed Jerboa
- Fourche Mountain Salamander
- Foushee Cavesnail
- Fox's Weaver
- Fraas' Lizard
- Fraggle Reef Alien Eye
- Fragile Wart Frog
- Francois' Langur
- Frankenberg's Bubble-nest Frog
- Frankland River Freshwater Snail
- Franklin's Bumble Bee
- Franklin's Climbing Salamander
- Fraternal Hill Rat
- Fraternal Snail
- Fraternal Squirrel
- Freckled Darter
- Fredius granulatus
- Free-living Stony Coral
- Freetown Long-fingered Frog
- Freira
- French Broad Crayfish
- French Cave Salamander
- Freshwater Pearl Mussel
- Freshwater Sawfish
- Freycinet's Epaulette Shark
- Freycinet's Frog
- Frigate Island Giant Tenebrionid Beetle
- Frilled Shark
- Fringe-backed Fire-eye
- Fringe-toed Sand Lizard
- Frogspawn Coral
- Frome River Freshwater Snail
- Frosted Flatwoods Salamander
- Frosted Myotis
- Fuegian Snipe
- Fuerteventura Stonechat
- Fuhrmann's Backpack Frog
- Fujian Rough-skinned Frog
- Fulton's Freshwater Snail
- Fulvous-dotted Treerunner
- Fungia curvata
- Fungia fungites
- Fungia seychellensis
- Fungia taiwanensis
- Furhstorfer's Jungle Watcher
- Furrowed Wood Turtle
- Furtive Flycatcher
- Furtive Tuco-tuco
- Fuzzy Pigtoe
- Fynbos Golden Mole
- Gabb's Snail
- Gabbiella rosea
- Gabela Akalat
- Gabela Bush-shrike
- Gabela Helmet-shrike
- Gabon Batis
- Gabriella's Grouper
- Gadgil's Tropical Frog
- Gadow's False Brook Salamander
- Gaige's Tropical Night Lizard
- Gaimard's Rat-kangaroo
- Galapagos Coral
- Galapagos Hawk
- Galapagos Islands Fur Seal
- Galapagos Land Iguana
- Galapagos Land Snail (Bulimulus achatellinus)
- Galapagos Marine Iguana
- Galapagos Martin
- Galapagos Penguin
- Galapagos Petrel
- Galapagos Rail
- Galapagos Rice Rat
- Galapagos Sea Lion
- Galapagos Shark
- Galapagos Tortoise
- Galeana False Brook Salamander
- Gallardo's Toad
- Gammon's Riffle Beetle
- Ganges Shark
- Ganges Soft-shelled Turtle
- Ganges Stingray
- Garden Dormouse
- Gardiner's Seychelles Frog
- Garnet Pitta
- Garo Hills Bubble-nest Frog
- Garra barreimiae
- Garra dunsirei
- Garra ghorensis
- Garra longipinnis
- Garrido's Hutia
- Gastrocopta boninensis
- Gastrotheca antomia
- Gastrotheca stictopleura
- Gastrotheca zeugocystis
- Gavial
- Geata Mouse Shrew
- Gebe Cuscus
- Geelvink Bay Flying Fox
- Geelvink Pygmy-parrot
- Geithusa pulchra
- Gejiu Blind Loach
- Gelada Baboon
- Geminoropa scindocataracta
- Gene's Cave Salamander
- Genoways's Yellow Bat
- Gentoo Penguin
- Geoffroy's Cat
- Geoffroy's Peruvian Woolly Monkey
- Geoffroy's Spider Monkey
- Geomalia
- Geometric Tortoise
- Geomitra coronata
- Geomitra delphinuloides
- Geomitra moniziana
- Geomitra tiarella
- Georgia Blind Salamander
- Georissa laseroni
- Geothelphusa levicervix
- Geothelphusa miyakoensis
- Gerenuk
- Germain's Peacock-pheasant
- Ghana River Frog
- Ghats Wart Frog
- Ghizani
- Ghost Bat
- Gia Lia Eastern Spadefoot Toad
- Giant Anteater
- Giant Antpitta
- Giant Armadillo
- Giant Asian Pond Turtle
- Giant Atlantic Tree Rat
- Giant Babax
- Giant Bandicoot
- Giant Barred River-frog
- Giant Blind Mole Rat
- Giant Bronze Gecko
- Giant Bushy-tailed Cloud Rat
- Giant Butterfly Ray
- Giant Clam
- Giant Conebill
- Giant Devilray
- Giant Ditch Frog
- Giant Freshwater Crayfish
- Giant Freshwater Stingray
- Giant Garter Snake
- Giant Gippsland Earthworm
- Giant Girdled Lizard
- Giant Golden Mole
- Giant Ground Pangolin
- Giant Guitarfish
- Giant Hispaniolan Galliwasp (Celestus anelpistus)
- Giant Hispaniolan Galliwasp (Celestus rozellae)
- Giant Hispaniolan Galliwasp (Celestus warreni)
- Giant Ibis
- Giant Kangaroo Rat
- Giant Kingbird
- Giant Kokopu
- Giant Marsupial Frog
- Giant Noctule Bat
- Giant Nuthatch
- Giant Otter
- Giant Palouse Earthworm
- Giant Panda
- Giant Pangasius
- Giant Philippine Frog
- Giant Pitta
- Giant Rain Frog
- Giant Sable Antelope
- Giant Scops Owl
- Giant Spiny Frog
- Giant Star Coral
- Giant Sturgeon
- Giant Thicket Rat
- Giant Torrent Midge
- Giant White-eye
- Giant Wrasse
- Giant Wrinkled Frog
- Giant-striped Mongoose
- Gibbibarbus cyphotergous
- Gigante Wrinkled Ground Frog
- Gila Chub
- Gila Monster
- Gila Springsnail
- Gila Topminnow
- Gila Trout
- Gilbert's Potoroo
- Gilded Tube-nosed Bat
- Gillaroo
- Ginger Pearlfish
- Giuliani's Dune Scarab Beetle
- Glacidorbis occidentalis
- Glacier Bay Wolf Spider
- Glacier Rat
- Gladiator Elimia
- Glandular Frog
- Glass Blue-eye
- Glass's Shrew
- Glaucous Macaw
- Glauerts Seadragon
- Globose Dune Beetle
- Gloomy Tube-nosed Bat
- Glossogobius ankaranensis
- Glossogobius flavipinnis
- Glossogobius intermedius
- Glossogobius matanensis
- Glovers Hardyhead
- Glow-throated Hummingbird
- Glyptophysa petiti
- Glyptorhagada bordaensis
- Glyptorhagada euglypta
- Glyptorhagada kooringensis
- Glyptorhagada silveri
- Glyptorhagada tattawuppana
- Godman's Treefrog
- Goebel's False Brook Salamander
- Goeldi's Marmoset
- Goeldi's Spiny Rat
- Goitered Gazelle
- Gola Malimbe
- Gold-fronted Fulvetta
- Gold-ringed Tanager
- Gold-spotted Marsupial Frog
- Goldbelly Reed Frog
- Golden Bamboo Lemur
- Golden Bandicoot
- Golden Bell Frog
- Golden Cownose Ray
- Golden Dancing-jewel
- Golden Frog
- Golden Grouper
- Golden Hamster
- Golden Lancehead
- Golden Langur
- Golden Line Fish
- Golden Lion Tamarin
- Golden Mantella
- Golden Minute Salamander
- Golden Palm Civet
- Golden Parakeet
- Golden Poison Frog
- Golden Shrub Frog
- Golden Swallow
- Golden Treefrog
- Golden Vizcacha Rat
- Golden White-eye
- Golden-backed Mountain Tanager
- Golden-backed Squirrel Monkey
- Golden-bellied Flyrobin
- Golden-bellied Treeshrew
- Golden-bellied White-eye
- Golden-capped Fruit Bat
- Golden-capped Parakeet
- Golden-cheeked Wood Warbler
- Golden-crowned Babbler
- Golden-crowned Manakin
- Golden-crowned Sifaka
- Golden-headed Lion Tamarin
- Golden-mantle Saddleback Tamarin
- Golden-mantled Tree-kangaroo
- Golden-naped Weaver
- Golden-plumed Parakeet
- Golden-rumped Elephant Shrew
- Golden-rumped Tamarin
- Golden-shouldered Parakeet
- Golden-striped Salamander
- Golden-tailed Parrotlet
- Golden-white Bare-ear Marmoset
- Golden-winged Laughingthrush
- Golden-winged Warbler
- Goldie's Bird-of-paradise
- Goldline Darter
- Goldman's Bunchgrass Lizard
- Goldman's Diminutive Woodrat
- Goldman's Pocket Mouse
- Goldstreifiger
- Goledn-line Angle Fish
- Golfodulcean Poison Frog
- Goliath Frog
- Goliath Grouper
- Goniastrea columella
- Goniastrea deformis
- Goniastrea favulus
- Goniastrea minuta
- Goniastrea palauensis
- Goniastrea peresi
- Goniastrea ramosa
- Goniastrea thecata
- Gonidomus sulcatus
- Goniopora albiconus
- Goniopora burgosi
- Goniopora cellulosa
- Goniopora columna
- Goniopora lobata
- Goniopora minor
- Goniopora planulata
- Goniopora polyformis
- Goniopora stokesi
- Goniopora tenella
- Gonospira cylindrella
- Gonospira deshayesi
- Gonospira duponti
- Gonospira holostoma
- Gonospira madgei
- Gonospira striaticostus
- Gonospira teres
- Gonospira turgidula
- Gonospira uvula
- Gonyostomus gonyostomus
- Gonyostomus insularis
- Goodeid
- Goodfellow's Tree-kangaroo
- Goodman's Mouse Lemur
- Gooty Tarantula
- Gopher Frog
- Gopher Tortoise
- Goral
- Gorgan Mountain Salamander
- Gorgas's Rice Rat
- Gorgeted Wood-quail
- Gorontalo Macaque
- Gorzula's Amazon Treefrog
- Gotel Mountain Soft-furred Mouse
- Gough Bunting
- Gough Moorhen
- Gould's Frogmouth
- Gould's Mouse
- Gould's Petrel
- Gouldian Finch
- Goureen
- Government Canyon Bat Cave Meshweaver
- Government Canyon Bat Cave Spider
- Graceful Pitta
- Graceful Splayfoot Salamander
- Grady's Cave Amphipod
- Graham's Cichlid
- Graham's Robber Frog
- Grand Cafe Robber Frog
- Grand Cayman Ground Iguana
- Grand Comoro Drongo
- Grand Comoro Flycatcher
- Grand Comoro Scops-owl
- Grand Minute Salamander
- Grand Skink
- Grand Wash Springsnail
- Grandbassa River Crab
- Grandidier's Trident Bat
- Granular Asian Toad
- Granular Poison Frog
- Granular Salamander
- Granulated Snail
- Grape Coral
- Graphium epaminondas
- Graphium idaeoides
- Graphium levassori
- Graphium meeki
- Graphium megaera
- Graphium procles
- Graphium sandawanum
- Graphium stresemanni
- Graphoderus bilineatus
- Graptodytes delectus
- Grassland Forest Treefrog
- Grauer's Cuckooshrike
- Grauer's Swamp Warbler
- Gray Bamboo Lemur
- Gray Bat
- Gray Dorcopsis
- Gray Grass Mouse
- Gray Imperial-pigeon
- Gray Langur
- Gray Mouse Lemur
- Gray Nurse Shark
- Gray Petrel
- Gray Whale
- Gray Wolf
- Gray's Monitor
- Gray-backed Hawk
- Gray-backed Tachuri
- Gray-bellied Comet
- Gray-bellied Shrew Opossum
- Gray-breasted Flycatcher
- Gray-breasted Mountain-toucan
- Gray-breasted Parakeet
- Gray-capped Hemispingus
- Gray-capped Tyrannulet
- Gray-checkered Whiptail
- Gray-cheeked Parakeet
- Gray-chested Jungle-flycatcher
- Gray-crested Helmet-shrike
- Gray-crowned Crocias
- Gray-crowned Palm-tanager
- Gray-crowned Prinia
- Gray-faced Sengi
- Gray-footed Spiny Rat
- Gray-handed Night Monkey
- Gray-headed Albatross
- Gray-headed Antbird
- Gray-headed Flying Fox
- Gray-headed Quail-dove
- Gray-headed Warbler
- Gray-hooded Sunbird
- Gray-necked Rockfowl
- Gray-sided Thrush
- Gray-throated Warbler
- Gray-winged Cotinga
- Graytail Skate
- Graziana klagenfurtensis
- Great Antpitta
- Great Argus
- Great Bustard
- Great Curassow
- Great Desert Skink
- Great Green Macaw
- Great Hornbill
- Great Indian Bustard
- Great Indian Rhinoceros
- Great Key Island Mosaic-tailed Rat
- Great Lake Freshwater Snail
- Great Peeping Frog
- Great Piebald Horned Toad
- Great Raft Spider
- Great Snipe
- Great Spinetail
- Great Spotted Kiwi
- Great Stingaree
- Great White Shark
- Great-billed Seed-finch
- Greater Adjutant
- Greater Bamboo Lemur
- Greater Bromeliad Treefrog
- Greater Dwarf Lemur
- Greater Fat-tailed Jerboa
- Greater Large-headed Shrew
- Greater Long-tailed Bat
- Greater Marmoset Rat
- Greater Mascarene Flying Fox
- Greater Monkey-faced Bat
- Greater Prairie-chicken
- Greater Rhea
- Greater Sage-grouse
- Greater Scythebill
- Greater Slow Loris
- Greater Spikethumb Frog
- Greater Spiny Madagascar Frog
- Greater Spotted Eagle
- Greater Stick-nest Rat
- Greater Tip-nosed Frog
- Greater Wilfred's Mouse
- Greek Algyroides
- Greek Brook Lamprey
- Greek Goldenwing
- Greek Red Damsel
- Greek Rock Lizard
- Green And Gold Frog
- Green And Red Venter Harlequin Toad
- Green Avadavat
- Green Bromeliad Frog
- Green Bubble-nest Frog
- Green Cave Frog
- Green Crab
- Green Hammer Coral
- Green Iora
- Green Labeo
- Green Mantella
- Green Peafowl
- Green Poison Frog
- Green Psammodromus
- Green Salamander
- Green Sea Turtle
- Green Sturgeon
- Green Torch Coral
- Green-backed Kingfisher
- Green-billed Coucal
- Green-breasted Bush-shrike
- Green-capped Tanager
- Green-crowned Racket-tailed Parrot
- Green-eyed Frog
- Green-faced Parrotfinch
- Green-fronted Hanging-parrot
- Green-naped Tanager
- Green-tailed Bristlebill
- Green-thighed Frog
- Green-throated Euphonia
- Greenback Stingaree
- Greenbrier Cave Amphipod
- Greenbrier Cave Crayfish
- Greenbrier Cavesnail
- Greenland Shark
- Greenland White-tailed Eagle
- Greensboro Burrowing Crayfish
- Grenada Dove
- Gressitt's Paramelomys
- Grevy's Zebra
- Grey Bamboo Shark
- Grey Falcon
- Grey's Robber Frog
- Grey-banded Munia
- Grey-bellied Bulbul
- Grey-breasted Babbler
- Grey-breasted Laughingthrush
- Grey-crowned Tetraka
- Grey-headed Fish-eagle
- Grey-headed Greenbul
- Grey-hooded Parrotbill
- Grey-striped Francolin
- Grey-winged Inca-finch
- Gristle-Headed Splayfoot Salamander
- Grizzled Giant Squirrel
- Grizzled Mexican Small-eared Shrew
- Grizzled Tree Kangaroo
- Groove-toothed Trumpet-eared Bat
- Grosbeak Bunting
- Ground Beetle (Rhadine exilis)
- Ground Parrot
- Guacamayo Plump Toad
- Guadalcanal Monkey-faced Bat
- Guadalcanal Rat
- Guadalcanal Thicketbird
- Guadalcanal Thrush
- Guadalupe Fur Seal
- Guadalupe Storm-petrel
- Guadeloupe Big Brown Bat
- Guadeloupe Big-eyed Bat
- Guadeloupe Woodpecker
- Guajira Stubfoot Toad
- Gualecenita Stubfoot Toad
- Guam Micronesian Kingfisher
- Guam Rail
- Guam Swiftlet
- Guanahacabibes Robber Frog
- Guanay Cormorant
- Guangxi Warty Newt
- Guaniguanic Yellow-mottled Frog
- Guantanamo Robber Frog
- Guanujo Stubfoot Toad
- Guaramacal Salamander
- Guatamalan Small Eared Shrew
- Guatemala Plateau Frog
- Guatemala Spikethumb Frog
- Guatemala Stream Frog
- Guatemalan Black Howler Monkey
- Guatemalan Bromeliad Salamander
- Guatemalan Knobtail
- Guatemalan Rubyspot
- Guatemalan Spiny-tailed Iguana
- Guatemalan Vole
- Guayacon Bocon
- Guayacon De Cuatro Cienegas
- Guayacon De Hacienda Dolores
- Guayacon De San Gregorio
- Guayaquil Woodpecker
- Guerreran Climbing Salamander
- Guerreran Leopard Frog
- Guerreran Peeping Frog
- Guerreran Stream Frog
- Guerrero Stream Frog
- Guiana Spider Monkey
- Guianan Crested Eagle
- Guibe's Bright-eyed Frog
- Guibe's Madagascar Frog
- Guille's Andes Frog
- Guina
- Guinea Baboon
- Guinea River Frog
- Guinea Screeching Frog
- Guinean Horseshoe Bat
- Guizhou Snub-nosed Monkey
- Gulella Snail (Gulella amboniensis)
- Gulf Grouper
- Gulf Moccasinshell
- Gulf Sturgeon
- Gulickia alexandri
- Gulper Shark
- Gundia Indian Frog
- Gundlach's Hawk
- Gundlach's Robber Frog
- Gunning's Golden Mole
- Gunnison Sage Grouse
- Gunther's Borneo Frog
- Gunther's Bubble-nest Frog
- Gunther's Caribbean Toad
- Gunther's Cylindrical Skink
- Gunther's Dwarf Burrowing Skink
- Gunther's Flathead Toad
- Gunther's Marsupial Frog
- Gunther's Whipping Frog
- Gunther's Wrinkled Ground Frog
- Gunung Bubble-nest Frog
- Gunung Mulu Borneo Frog
- Gunung Mulu Bubble-nest Frog
- Gunung Mulu Stream Toad
- Guramba Shrew
- Gurney's Eagle
- Gurney's Pitta
- Gwyniad
- Gyraulus cockburni
- Gyraulus mauritianus
- Habana Robber Frog
- Hacrochlamys lineolatus
- Haddock
- Hadra wilsoni
- Hainald's Flores Island Rat
- Hainan Flathead Toad
- Hainan Frog
- Hainan Gymnure
- Hainan Hare
- Hainan Knobby Newt
- Hainan Leaf-warbler
- Hainan Partridge
- Hainan Spadefoot Toad
- Hainan Torrent Frog
- Hainan Wart Frog
- Hainanpotamon orientale
- Hairy Harvest Mouse
- Hairy Little Fruit Bat
- Hairy Long-nosed Armadillo
- Hairy-eared Dwarf Lemur
- Hairy-nosed Otter
- Hairy-tailed Tree Rat
- Haitian Slider
- Haitian Solenodon
- Hajar Wadi Damsel
- Hakuba Salamander
- Half-stripe Bromeliad Frog
- Halliday's Bubble-nest Frog
- Halmaheran Blossom Bat
- Halomitra clavator
- Hamelin Ctenotus
- Hamilton's Frog
- Hammerhead Shark
- Hammond's Rice Rat
- Hampala lopezi
- Handapan Bubble-nest Frog
- Handapan Ell Bubble-nest Frog
- Handapan Ella Bubble-nest Frog
- Handley's Slender Mouse Opossum
- Handley's Tailless Bat
- Haplochromis acidens
- Haplochromis aelocephalus
- Haplochromis aeneocolor
- Haplochromis annectidens
- Haplochromis argenteus
- Haplochromis barbarae
- Haplochromis bayoni
- Haplochromis beadlei
- Haplochromis brownae
- Haplochromis cavifrons
- Haplochromis chilotes
- Haplochromis chromogynos
- Haplochromis crassilabris
- Haplochromis cryptodon
- Haplochromis cyaneus
- Haplochromis desfontainii
- Haplochromis erythromaculatus
- Haplochromis flaviijosephi
- Haplochromis flavus
- Haplochromis granti
- Haplochromis guiarti
- Haplochromis heusinkveldi
- Haplochromis howesi
- Haplochromis ishmaeli
- Haplochromis katavi
- Haplochromis labiatus
- Haplochromis laprogramma
- Haplochromis latifasciatus
- Haplochromis lividus
- Haplochromis maculipinna
- Haplochromis maxillaris
- Haplochromis megalops
- Haplochromis melanopterus
- Haplochromis mento
- Haplochromis microdon
- Haplochromis nuchisquamulatus
- Haplochromis obliquidens
- Haplochromis oregosoma
- Haplochromis paropius
- Haplochromis perrieri
- Haplochromis petronius
- Haplochromis phytophagus
- Haplochromis piceatus
- Haplochromis plagiodon
- Haplochromis plagiostoma
- Haplochromis prodromus
- Haplochromis pyrrhocephalus
- Haplochromis sauvagei
- Haplochromis saxicola
- Haplochromis serranus
- Haplochromis simpsoni
- Haplochromis sp. nov. 'Amboseli'
- Haplochromis sp. nov. 'ruby'
- Haplochromis spekii
- Haplochromis tweddlei
- Haplochromis velifer
- Haplochromis venator
- Haplochromis victorianus
- Haplochromis welcommei
- Haplochromis worthingtoni
- Haplophthalmus abbreviatus
- Haplophthalmus rhinoceros
- Hara's Cave Amphipod
- Haraldmeier's Mantella
- Hard Coral
- Hardnose Shark
- Hardy's Hooknose Snake
- Harenna Shrew
- Harlequin Frog
- Harmles Serotine
- Harmogenanina argentea
- Harmogenanina implicata
- Harney Basin Duskysnail
- Harpagochromis sp. nov. 'frogmouth'
- Harpagoxenus canadensis
- Harpagoxenus sublaevis
- Harpgoxenus zaisanicus
- Harpy Eagle
- Harrisson's Flying Frog
- Hartebeest
- Hartweg's Climbing Salamander
- Hartweg's Spikethumb Frog
- Hartwig's Soft-furred Mouse
- Harvey's Andes Frog
- Harwood's Francolin
- Hastings River Mouse
- Hatchie Burrowing Crayfish
- Hauffenia kerschneri
- Hauffenia sp. nov.
- Hauffenia wienerwaldensis
- Hawaii Creeper
- Hawaiian Coot
- Hawaiian Crow
- Hawaiian Dark-rumped Petrel
- Hawaiian Duck
- Hawaiian Goose
- Hawaiian Grouper
- Hawaiian Hawk
- Hawaiian Hoary Bat
- Hawaiian Monk Seal
- Hawaiian Petrel
- Hawaiian Stilt
- Hawksbill Sea Turtle
- Hay's Spring Amphipod
- Haycock Bubble-nest Frog
- Haycock Shrub Frog
- Hazel's Treefrog
- Hazel's Wrinkled Ground Frog
- Heathcote Creek Freshwater Snail
- Heavenly Hill Rat
- Heavy Pigtoe
- Heazlewood River Freshwater Snail
- Heck's Macaque
- Hector's Dolphin
- Hedgehog Seahorse
- Hedleya macleayi
- Hedleyoconcha ailaketoae
- Hedrick's Robber Frog
- Heermann's Gull
- Heinrich's Wart Frog
- Heinroth's Shearwater
- Hejiang Spiny Frog
- Helicarion leopardina
- Helicarion porrectus
- Helicarion rubicundus
- Helicella bierzona
- Helicella mariae
- Helicella stiparum
- Helicina rostrata
- Helicostyla smargadina
- Heliodiaptomus kolleruensis
- Heliodiaptomus pulcher
- Helix ceratina
- Helix obruta
- Helix texta
- Hell Creek Crayfish
- Hellbender
- Hellmich's Rocket Frog
- Helmet Vanga
- Helmeted Honeyeater
- Helmeted Hornbill
- Helmeted Myna
- Helmeted Water Toad
- Helmeted Woodpecker
- Helotes Mold Beetle
- Hemiboeckella powellensis
- Hemicordulia ogasawarensis
- Hemicordulia okinawensis
- Hemicycla pouchet
- Hemicycla saulcyi
- Hemigrammocapoeta kemali
- Hemigrammocapoeta nana
- Hemimyzon taitungensis
- Hemisaga elongata
- Hemisaga lucifer
- Hemisaga vepreculae
- Hemistoma beaumonti
- Hemistoma flexicolumella
- Hemistoma minutissima
- Hemistoma pusillior
- Hemistoma whiteleggei
- Henderson Island Crake
- Henderson Island Fruit-dove
- Henderson Lorikeet
- Henderson Petrel
- Henderson Reed-warbler
- Henna-hooded Foliage-gleaner
- Henna-tailed Jungle-flycatcher
- Henslow's Sparrow
- Henst's Goshawk
- Herault Sculpin
- Herbert's Black Millipede
- Heredia Treefrog
- Hermes Copper
- Hermit Beetle
- Hernandez's Stubfoot Toad
- Herrera's Alligator Lizard
- Herrera's Mud Turtle
- Herveo Plump Toad
- Hesperodiaptomus augustaensis
- Hesperodiaptomus californiensis
- Heterocyclus perroquini
- Heterocyclus petiti
- Heterothelphusa fatum
- Hewitt's Ghost Frog
- Hickman's Pygmy Mountain Shrimp
- Hidalgo Anole
- Hidden Angel Shark
- Hidden Pebblesnail
- Higgin's Anomalous Blue
- Higgins Eye Pearlymussel
- Highfin Coral Grouper
- Highland Guan
- Highland Long-fingered Frog
- Highland Splitfin
- Highveld Golden Mole
- Hildegarde's Tomb Bat
- Hill Shrew
- Hill's Horseshoe Bat
- Himalayan Musk Deer
- Himalayan Quail
- Himalayan Serow
- Himalayan Tahr
- Himalayan Wood Mouse
- Hinde's Pied-babbler
- Hine's Emerald Dragonfly
- Hipparchia azorina
- Hipparchia maderensis
- Hipparchia occidentalis
- Hirasea acutissima
- Hirasea chichijimana
- Hirasea diplomphalus
- Hirasea insignis
- Hirasea operculina
- Hirinaba curytibana
- Hirthia littorina
- Hispaniola Robber Frog
- Hispaniolan Amazon
- Hispaniolan Crestless Toad
- Hispaniolan Crossbill
- Hispaniolan Crowned Frog
- Hispaniolan Giant Treefrog
- Hispaniolan Greater Funnel-eared Bat
- Hispaniolan Ground Iguana
- Hispaniolan Malachite
- Hispaniolan Montane Frog
- Hispaniolan Parakeet
- Hispaniolan Trogon
- Hispaniolan Wheeping Frog
- Hispaniolan Yellow Treefrog
- Hispid Hare
- Hiwassee Crayfish
- Hiwassee Headwater Crayfish
- Hoary Puffleg
- Hoary-throated Spinetail
- Hobb's Cave Amphipod
- Hobbseus cristatus
- Hochstetter's Frog
- Hocking's Water Frog
- Hodges' Clubtail
- Hodgson's Giant Flying Squirrel
- Hoffman's Black Millipede
- Hoffmann's Bubble-nest Frog
- Hoffmann's Pika
- Hog Badger
- Hog Deer
- Hogfish
- Hogsback Frog
- Hokuriku Salamander
- Holst's Frog
- Holy-mountain Salamander
- Hombron's Kingfisher
- Home's Hinge-back Tortoise
- Honduran Brook Frog
- Honduran Emerald
- Honduran Paleate Spiny-tailed Iguana
- Honduran White Bat
- Honduras Spikethumb Frog
- Honduras White-lipped Frog
- Honey Blue-eye
- Hong Kong Cascade Frog
- Hong Kong Grouper
- Hong Kong Spiny Frog
- Hong Kong Warty Newt
- Hood Ancylid
- Hood Coral
- Hooded Antpitta
- Hooded Berryeater
- Hooded Carpet Shark
- Hooded Crane
- Hooded Grebe
- Hooded Plover
- Hooded Racket-tailed Treepie
- Hooded Seal
- Hooded Seedeater
- Hooded Visorbearer
- Hoogerwerf's Sumatran Rat
- Hoogstraal's Gerbil
- Hook-billed Bulbul
- Hook-billed Hermit Hummingbird
- Hook-billed Kite
- Hoolock Gibbon
- Horaglanis krishnai
- Horastrea indica
- Horned Coot
- Horned Curassow
- Horned Guan
- Horned Knobtail
- Horned Marsupial Frog
- Horned Parakeet
- Horned Wrinkled Ground Frog
- Horse-tailed Squirrel
- Horsfield's Tarsier
- Horvath's Rock Lizard
- Hose's Broadbill
- Hose's Langur
- Hose's Palm Civet
- Hosmer's Frog
- Hotel Zaracay Salamander
- Houbara Bustard
- House Wren
- Houston Toad
- Howarth's Cave Cricket
- Howell's Forest Shrew
- Huachuca Springsnail
- Huahachuco Water Frog
- Hualapai Mexican Vole
- Huanuco Water Frog
- Huila Stubfoot Toad
- Humbali Village Toad
- Humboldt Penguin
- Hume's Pheasant
- Hume's Rat
- Hummelinck's Vesper Mouse
- Humpback Chub
- Humpback Smoothhound
- Humpback Whale
- Humped Knobtail
- Hungerford's Crawling Water Beetle
- Hunter's Antelope
- Huon Tree-kangaroo
- Hutton's Shearwater
- Hyacinth Macaw
- Hyacinth Visorbearer
- Hyaline Fish
- Hyalinobatrachium aureoguttatum
- Hyalinobatrachium cardiacalyptum
- Hyalinobatrachium crybetes
- Hyalinobatrachium esmeralda
- Hyalinobatrachium fragile
- Hyalinobatrachium guairarepanense
- Hyalinobatrachium ibama
- Hyalinobatrachium orientale
- Hyalinobatrachium pallidum
- Hyalinobatrachium pellucidum
- Hydnophora Coral (Hydnophora bonsai)
- Hydrobia scamandri
- Hydrotarsus compunctus
- Hydrotarsus pilosus
- Hygromia golasi
- Hyla bocourti
- Hyla heinzsteinitzi
- Hylarana mangyanum
- Hyloscirtus jahni
- Hypolobocera alata
- Hypolobocera andagoensis
- Hypolobocera barbacensis
- Hypolobocera cajambrensis
- Hypolobocera exuca
- Hypolobocera gracilignatha
- Hypolobocera rathbuni
- Hypolobocera rotundilobata
- Hypolobocera velezi
- Hypsiboas cipoensis
- Hyrcanian Field Mouse
- Ian's Andes Frog
- Ibadan Malimbe
- Ibanum pilimanus
- Iberian Emerald Lizard
- Iberian Frog
- Iberian Midwife Toad
- Iberian Rock Lizard
- Iberochondrostoma almacai
- Iberochondrostoma lemmingii
- Iberochondrostoma lusitanicus
- Iberochondrostoma oretanum
- Iberocypris alburnoides
- Iberocypris palaciosi
- Ibiza Wall Lizard
- Icacos White-lipped Frog
- Ichetucknee Siltsnail
- Ichnosomunda sacchii
- Idaho Ground Squirrel
- Idaho Point-headed Grasshopper
- Idaho Springsnail
- Ideopsis hewitsonii
- Ideopsis oberthurii
- Idiomela subplicata
- Idomacromia jillianae
- Idunella sketi
- Iglica kleinzellensis
- Iiwi
- Ili Pika
- Illidge's Ant-blue (Butterfly)
- Illiman's Andes Frog
- Illinois Cave Amphipod
- Imitator Sparrowhawk
- Imnadia banatica
- Imnadia cristata
- Imnadia panonica
- Imperial Cave Salamander
- Imperial Parrot
- Imperial Pheasant
- Imperial Snipe
- Imperial Woodpecker
- Impressed Tortoise
- Inaccessible Island Rail
- Inagua Island Turtle
- Inca Oldfield Mouse
- Inca Tern
- Incachaca Toad
- Incan Little Mastiff Bat
- Incilius macrocristatus
- Incomati Suckermouth
- Independencia Robber Frog
- Indian Brown Mongoose
- Indian Eyed Turtle
- Indian Flying Frog
- Indian Giant Squirrel
- Indian Pangolin
- Indian Python
- Indian Sawback Turtle
- Indian Skimmer
- Indian Softshell Turtle
- Indian Spotted Eagle
- Indian Toad
- Indian Vulture
- Indian Yellow-nosed Albatross
- Indiana Bat
- Indigo Macaw
- Indigo-winged Parrot
- Indo-pacific Hump-backed Dolphin
- Indochinamon bhumibol
- Indochinamon cua
- Indochinamon guttum
- Indochinamon mieni
- Indochinamon villosum
- Indochinese Box Turtle
- Indochinese Lutung
- Indolestes boninensis
- Indonesian Shovelnose Ray
- Indri
- Indus River Dolphin
- Inger's Asian Tree Toad
- Inger's Bubble-nest Frog
- Inger's Flying Frog
- Inger's Robber Frog
- Inger's Wart Frog
- Ingerophrynus kumquat
- Ingolfiella longipes
- Inland Hill Rat
- Inquisivi Andes Frog
- Inquisivi Water Frog
- Insulivitrina reticulata
- Interior Digging Frog
- Interior Robber Frog
- Invisible Rail
- Inyanga Toad
- Inyangani River Frog
- Inyo Mountains Salamander
- Iodotropheus declivitas
- Iodotropheus sprengerae
- Iodotropheus stuartgranti
- Iomon luangprabangensis
- Iomon nan
- Iowa Pleistocene Snail
- Iphis Monarch
- Iquitos Gnatcatcher
- Irangi River Frog
- Iraq Blind Barb
- Iredaleoconcha caporaphe
- Iringa Ground Robin
- Iris Lorikeet
- Irishtown Freshwater Snail
- Irmengardia didacta
- Irmengardia johnsoni
- Irmengardia nemestrinus
- Irrawaddy Dolphin
- Isabel Giant Rat
- Isabela Oriole
- Isaka-Ivondro Madagascar Frog
- Isalo Bright-eyed Frog
- Isalo Madagascar Frog
- Isalo Serotine Bat
- Isarog Forest Frog
- Isarog Rhynchomys
- Isarog Shrew Mouse
- Ischnocnema epipeda
- Ischnocnema manezinho
- Ischnocnema oea
- Ischnura abyssinica
- Ischnura gemina
- Ishikawa's Frog
- Isla Bonita Treefrog
- Island Cisticola
- Island Fox
- Island Scrub-jay
- Isolapotamon bauense
- Isophya harzi
- Isopora brueggemanni
- Isopora crateriformis
- Isopora cuneata
- Isopora palifera
- Isopora togianensis
- Israel Painted Frog
- Isthmohyla insolita
- Isthmohyla melacaena
- Italian Agile Frog
- Italian Bleak
- Italian Cave Salamander
- Italian Goldenring
- Itasenpara Bitterling
- Itatiaia Highland Frog
- Itombwe Nightjar
- Ivory Coast Frog
- Ivory Coast Running Frog
- Ivory Coast Wart Frog
- Ivory Gull
- Ivory-billed Woodpecker
- Ivory-faced Flatwing
- Ixalodectes flectocercus
- Ixil Spikethumb Frog
- Ixtlan Deer Mouse
- Izecksohn's Brazilian Treefrog
- Izecksohn's Bromeliad Frog
- Izecksohn's Guanabara Frog
- Izu Leaf-warbler
- Izu Stingray
- Izu Thrush
- Jackson Prarie Crayfish
- Jackson's Mongoose
- Jackson's Widowbird
- Jacobson's Bubble-nest Frog
- Jaeger's Bright-eyed Frog
- Jagged-shelled Turtle
- Jaguar
- Jaguarundi
- Jalapan Pine Vole
- Jaliscan Spiny Pocket Mouse
- Jalpa False Brook Salamander
- Jamaica Petrel
- Jamaica Robber Frog
- Jamaican Blackbird
- Jamaican Boa
- Jamaican Giant Swallowtail Butterfly
- Jamaican Greater Funnel-eared Bat
- Jamaican Hypolestes
- Jamaican Iguana
- Jamaican Kite
- Jamaican Pauraque
- Jamaican Red Bat
- Jamaican Red-eyed Frog
- Jamaican Snoring Frog
- Jambu Fruit-dove
- James Spinymussel
- Japanese Ant
- Japanese Crane
- Japanese Crested Ibis
- Japanese Devilray
- Japanese Giant Salamander
- Japanese Huchen
- Japanese Murrelet
- Japanese Night-heron
- Japanese Noctule
- Japanese Paradise-flycatcher
- Japanese Short-tailed Bat
- Japanese Waxwing
- Japanese Wood-pigeon
- Japanese Yellow Bunting
- Jardinella acuminata
- Jardinella carnarvonensis
- Jardinella colmani
- Jardinella coreena
- Jardinella corrugata
- Jardinella edgbastonensis
- Jardinella eulo
- Jardinella exigua
- Jardinella isolata
- Jardinella jesswiseae
- Jardinella pallida
- Jardinella zeidlerorum
- Java Flying Frog
- Java Indonesian Treefrog
- Java Sparrow
- Java Stingaree
- Javan Bamboo Rat
- Javan Cochoa
- Javan Grizzled Langur
- Javan Hawk-eagle
- Javan Lapwing
- Javan Lutung
- Javan Pithecheir
- Javan Plover
- Javan Rhinoceros
- Javan Rusa
- Javan Scops-owl
- Javan Shrew-like Mouse
- Javan Slit-faced Bat
- Javan Slow Loris
- Javan Tailless Fruit Bat
- Javan Torrent Frog
- Javan Trogon
- Javan Warty Pig
- Javan White-eye
- Javan Woodcock
- Jay's River Snail
- Jefferson County Crayfish
- Jelak Asian Toad
- Jemez Mountains Salamander
- Jenkin's Andaman Spiny Shrew
- Jenkins' Shrew Tenrec
- Jentink's Duiker
- Jerdon's Babbler
- Jerdon's Courser
- Jeweled Toad
- Jico Deer Mouse
- Jin Jiang Sucker Frog
- Jingdong Frog
- Jingdong Lazy Toad
- Jinxiu Bubble-nest Frog
- Jiulong Spiny Frog
- Jocotoco Antpitta
- Johnson's Horned Treefrog
- Johnston's Genet
- Johnston's River Frog
- Johnston's Water Frog
- Johora counsilmani
- Johora gapensis
- Johora johorensis
- Johora punicea
- Johora singaporensis
- Johora thoi
- Johora tiomanensis
- Joiceya praeclarus
- Jolly's Mouse Lemur
- Jollyville Plateau Salamander
- Jondachi Treefrog
- Jones' Roundleaf Bat
- Jordan's Swallowtail
- Jouanin's Petrel
- Jozani River Frog
- Jozani Running Frog
- Juan Fernandez Firecrown
- Juan Fernandez Fur Seal
- Juan Fernandez Petrel
- Juan Fernandez Tit-tyrant
- Juanita's Earless Treefrog
- Juil Ciego
- Jujuy Water Frog
- Julia Creek Dunnart
- Juliana's Golden Mole
- Jullien's Golden Carp
- Jumrum Australian Treefrog
- Junaluska Salamander
- June Sucker
- Jungle Threadtail
- Junin Andes Frog
- Junin Grebe
- Junin Rail
- Junin Slender Opossum
- Junlian Odorous Frog
- Ka'apor Capuchin
- Kabatangan Frog
- Kadamaian Stream Toad
- Kadavu Fantail
- Kaempfer's Tody-tyrant
- Kaempfer's Woodpecker
- Kafue Mole Rat
- Kagu
- Kahuzi Swamp Shrew
- Kai Cicadabird
- Kajang Asian Toad
- Kakadu Pebble Mouse
- Kakapo
- Kalakad Wrinkled Frog
- Kalakkad Flying Frog
- Kalang Wart Frog
- Kaliella hongkongensis
- Kalinga Narrowmouth Toad
- Kalinowski's Oldfield Mouse
- Kalombo Suckermouth
- Kaluga
- Kamboranga Bubble-nest Frog
- Kamborangah Borneo Frog
- Kampira Falls Frog
- Kanab Amber Snail
- Kanab Ambersnail
- Kanawha Minnow
- Kandar
- Kandy Bubble-nest Frog
- Kangaroo Bubble-nest Frog
- Kangaroo Island Dunnart
- Kangaroo Rat
- Kangting Sucker Frog
- Kanneliya Dot Frog
- Kapala Stingaree
- Kapcypriodopsis barnardi
- Kapit Borneo Frog
- Kapit Rice Frog
- Kaplan's Garagoa Treefrog
- Karamoja Apalis
- Karimi's Fat-tailed Mouse Opossum
- Karissimbi Forest Treefrog
- Karkloof Blue Butterfly
- Karl's Robber Frog
- Karnataka Bubble-nest Frog
- Karnataka Rice Frog
- Karner Blue Butterfly
- Karpathos Frog
- Karpathos Lycian Salamander
- Karwar Large Burrowing Spider
- Kashmir Flycatcher
- Kashmir Gray Langur
- Kashmir Musk Deer
- Kasner's Dwarf Burrowing Skink
- Katapa-tapa
- Katechonemertes nightingaleensis
- Katolo
- Kauai 'O'o
- Kauai Akialoa
- Kauai Amakihi
- Kauai Cave Amphipod
- Kauai Cave Wolf Spider
- Kauai Thin-footed Bush Cricket
- Kaumana Cave Cricket
- Kawanphila pachomai
- Kazakhstan Blind Mole Rat
- Kazbeg Birch Mouse
- Kea
- Keast's Tube-nosed Fruit Bat
- Keel-billed Motmot
- Keeled Sideband
- Keeled Snail
- Keelsnout Treefrog
- Keith's Striped Frog
- Kelaart's Dwarf Toad
- Kelaart's Long-clawed Shrew
- Kelp Grouper
- Kelso Giant Sand Treader Cricket
- Kelso Jerusalem Cricket
- Kemp's Ridley Sea Turtle
- Kemp's Thicket Rat
- Kentucky Cave Shrimp
- Kerala Indian Frog
- Kerangas Bubble-nest Frog
- Kerch Black Sea Shad
- Kerguelen Tern
- Kern Canyon Slender Salamander
- Kern Plateau Salamander
- Kern Shoulderband
- Key Largo Cotton Mouse
- Key Largo Woodrat
- Keys Scaly Cricket
- Keys Short-winged Conehead Katydid
- Kezenoi-am Trout
- Khaki Bromeliad Frog
- Khastor Water Frog
- Kiau Borneo Frog
- Kibiti Lampeye
- Kihanga Reed Frog
- Kihaule's Mouse Shrew
- Kikuzato's Brook Snake
- Kilimanjaro Mouse Shrew
- Killer Whale
- Kilombero Weaver
- Kimboraga exanimus
- Kimboraga koolanensis
- Kimboraga micromphala
- Kimboraga yammerana
- Kina Balu Flying Frog
- Kina Balu Stream Toad
- Kinabalu Asian Toad
- Kinabalu Horned Frog
- Kinabalu Shrew
- Kinabalu Spadefoot Toad
- King Colobus
- King Rat
- King's Bullhead
- Kinglet Calyptura
- Kings River Slender Salamander
- Kipengere Seedeater
- Kipunji
- Kirtland's Snake
- Kirtland's Wood Warbler
- Kite Ray
- Kittlitz's Murrelet
- Kitumbeine Stream Frog
- Kivu Banana Frog
- Kivu Ground-thrush
- Kivu Long-haired Shrew
- Kivu Screeching Frog
- Kivu Shrew
- Kivu Tree Frog
- Kiyi
- Klages's Antwren
- Klemmer's Madagascar Frog
- Klinikowski's Robber Frog
- Kloss's Gibbon
- Kluchor Birch Mouse
- Kneria ruaha
- Kneria sp. nov. 'South Africa'
- Kneria uluguru
- Knifetooth Sawfish
- Knipowitschia cameliae
- Knipowitschia croatica
- Knipowitschia ephesi
- Knipowitschia mermere
- Knipowitschia milleri
- Knipowitschia punctatissima
- Knipowitschia radovici
- Knipowitschia sp. nov. 'Visovac'
- Knipowitschia thessala
- Knob Coral (Favia albidus)
- Knob Coral (Favia helianthoides)
- Knob Coral (Favia lacuna)
- Knob Coral (Favia laxa)
- Knob Coral (Favia lizardensis)
- Knob Coral (Favia maritima)
- Knob Coral (Favia marshae)
- Knob Coral (Favia matthaii)
- Knob Coral (Favia maxima)
- Knob Coral (Favia rosaria)
- Knob Coral (Favia rotundata)
- Knob Coral (Favia stelligera)
- Knob Coral (Favia veroni)
- Knob Coral (Favia vietnamensis)
- Knob Mudalia
- Knotty Elimia
- Knysna Banana Frog
- Knysna Velvet Worm
- Knysna Warbler
- Knysna Woodpecker
- Kobayashi's Horned Frog
- Kocevje Subterranean Spider (Troglohyphantes gracilis)
- Kocevje Subterranean Spider (Troglohyphantes similis)
- Kocevje Subterranean Spider (Troglohyphantes spinipes)
- Koepcke's Hermit
- Kogelberg Reserve Frog
- Koh Chang Island Frog
- Kokagala Streamlined Frog
- Kokako
- Kokoe Poison Frog
- Kolar Leaf-nosed Bat
- Kolombangara Monarch
- Komodo Cross Frog
- Komodo Island Monitor
- Komodo Rat
- Kondana Soft-furred Rat
- Kondoconcha othnius
- Konye
- Koopman's Pencil-tailed Tree Mouse
- Koskulana Bubble-nest Frog
- Kosrae Flying Fox
- Koster's Springsnail
- Kotagama's Dwarf Toad
- Kottawa Bubble-nest Frog
- Kottigehar Tropical Frog
- Kouprey
- Kowari
- Kozlov's Pika
- Krefft's River Frog
- Kretschmarr Cave Mold Beetle
- Kroombit Tinker Frog
- Krueper's Nuthatch
- Kuang-wu Shan Frog
- Kubusi Featherlegs
- Kuekenthal's Yellow Tiger
- Kululu
- Kungwe Apalis
- Kunming Nase
- Kunming Snout Trout
- Kunming-lake Catfish
- Kurdistan Spotted Newt
- Kurintji Flying Frog
- Kuroiwa's Ground Gecko
- Kutubu Hardyhead
- Kutubu Tandan
- Kwang-yang Asian Frog
- Kyidris media
- Kyidris yaleogyna
- L'hoest's Monkey
- La Arboleda Stubfoot Toad
- La Banderita Marsupial Frog
- La Estrella Salamander
- La Fortuna Worm Salamander
- La Gomera Giant Lizard
- La Guitarra Stubfoot Toad
- La Horma Robber Frog
- La Hotte Glanded Frog
- La Hotte Whistling Frog
- La Hoya Minute Salamander
- La Loma Tree Frog
- La Maya Robber Frog
- La Palma Giant Lizard
- La Palma Pupfish
- La Palma Salamander
- La Plata River Dolphin
- La Plata Skate
- La Rioja Water Frog
- La Selle Grass Frog
- La Selle Long-legged Frog
- La Selle Red-legged Frog
- La Selle Thrush
- La Siberia Marsupial Frog
- Labang Rice Frog
- Labeo lankae
- Labeo sp. nov. 'Baomo'
- Labeo sp. nov. 'Mzima'
- Labeo trigliceps
- Labidochromis chisumluae
- Labidochromis flavigulis
- Labidochromis freibergi
- Labidochromis gigas
- Labidochromis heterodon
- Labidochromis ianthinus
- Labidochromis lividus
- Labidochromis mbenjii
- Labidochromis mylodon
- Labidochromis pallidus
- Labidochromis strigatus
- Labidochromis zebroides
- Labord's Chameleon
- Lacepede's Ground Snake
- Lacerta clarkorum
- Lacerta kulzeri
- Lacy Elimia
- Laevicaulis haroldi
- Lagden's Bush-shrike
- Laggala Bubble-nest Frog
- Laggar Falcon
- Lagniappe Crayfish
- Laguna del Bay Frog
- Laguna Mountains Skipper
- Laguna Toad
- Lake Cronin Snake
- Lake Eacham Rainbowfish
- Lake Kurumoi Rainbowfish
- Lake Kutubu Rainbowfish
- Lake Lerma Salamander
- Lake Magadi Tilapia
- Lake Oku Clawed Frog
- Lake Patzcuaro Salamander
- Lake Placid Funnel Wolf Spider
- Lake River Freshwater Snail
- Lake Rukwa Sardine
- Lake Rukwa Suckermouth
- Lake Victoria Deepwater Catfish
- Lake Wanam Rainbowfish
- Lamarck's Sheet Coral
- Lamellidea biplicata
- Lamellidea ogasawarana
- Lami Tuco-tuco
- Laminella sanguinea
- Lamnifera pauli
- Lamotte's Roundleaf Bat
- Lampadia webbiana
- Lampedusa imitratix
- Lampedusa melitensis
- Lampobatang Sulawesi Rat
- Lamprocystis hahajimana
- Lamprologus kungweensis
- Lancelin Island Skink
- Landdros Moss Frog
- Lange's Metalmark Butterfly
- Lanistes alexandri
- Lanistes bicarinatus
- Lanistes farleri
- Lanistes intortus
- Lanistes nasutus
- Lanistes neritoides
- Lanistes nyssanus
- Lanistes solidus
- Lanistes stuhlmanni
- Lantzia carinata
- Lanza's Alpine Salamander
- Lanza's Frog
- Lanza's Skink
- Laos Sucker Frog
- Laotian Black Langur
- Laotian Rock Rat
- Laotian Shad
- Lappet-faced Vulture
- Lar Gibbon
- Lar Valley Viper
- Larch Mountain Salamander
- Large Asian Leaf-nosed Bat
- Large Blue Lake Mayfly
- Large Desert Marsupial-mouse
- Large False Serotine
- Large Flying-fox
- Large Frogmouth
- Large Green-pigeon
- Large Indian Civet
- Large Iron-gray Dwarf Lemur
- Large Ivory Coral
- Large Kauai Thrush
- Large Long-clawed Mouse
- Large Rufous Horseshoe Bat
- Large Wren-babbler
- Large Wrinkled Frog
- Large-antlered Muntjac
- Large-billed Blue-flycatcher
- Large-crested Toad
- Large-eared Free-tailed Bat
- Large-eared Hutia
- Large-eared Oldfield Mouse
- Large-eared Pied Bat
- Large-eyed Rabbitfish
- Large-headed Forest Shrew
- Large-headed Rice Rat
- Large-headed Water Snake
- Large-spined Bell Toad
- Large-spotted Civet
- Large-toothed Shrew
- Largemouth Yellowfish
- Largescale Pupfish
- Largescale Spiny Lizard
- Largetooth Sawfish
- Laricis Tree Cricket
- Las Minas Frog
- Las Palmas Spikethumb Frog
- Lasius reginae
- Lataste's Viper
- Laurent's Night Frog
- Lauria fanalensis
- Lava Gull
- Lava Rock Mountain Snail
- Lavaret
- Lavigera coronata
- Lawton's Wrinkled Ground Frog
- Layard's Palm Squirrel
- Laysan Albatross
- Laysan Duck
- Laysan Finch
- Lazuli Kingfisher
- Leadbeater's Possum
- Leaf-nosed Lizard
- Leaping False Brook Salamander
- Least Big-eared Bat
- Least Chub
- Least Crayfish
- Least Pauraque
- Least Tern
- Least Valley Coral
- Least Woolly Bat
- Least Yellow Bat
- Leatherback Sea Turtle
- Lebanon Viper
- Leber's Robber Frog
- Lee County Cave Isopod
- Leeward Island Racer
- Legler's Stream Frog
- Lehmann's Poison Frog
- Lehmann's Rocket Frog
- Leiostyla abbreviata
- Leiostyla callathiscus
- Leiostyla cassidula
- Leiostyla cheiligona
- Leiostyla concinna
- Leiostyla corneocostata
- Leiostyla degenerata
- Leiostyla ferraria
- Leiostyla filicum
- Leiostyla gibba
- Leiostyla heterodon
- Leiostyla laevigata
- Leiostyla monticola
- Leiostyla relevata
- Leiostyla simulator
- Leiostyla vermiculosa
- Leishan Spiny Toad
- Leith's Softshell Turtle
- Leka Keppe
- Lemniscia calva
- Lemniscia michaudi
- Lemur Leaf Frog
- Lemuroid Ringtail Possum
- Lentipes whittenorum
- Leon Springs Pupfish
- Leopard
- Leopard Darter
- Leopard Fringe-fingered Lizard
- Leopard Shark
- Leora's Stream Salamander
- Lepidiolamprologus attenuatus
- Lepidochrysops badhami
- Lepidochrysops balli
- Lepidochrysops jefferyi
- Lepidochrysops littoralis
- Lepidochrysops loewensteini
- Lepidochrysops lotana
- Lepidochrysops oosthuizeni
- Lepidochrysops outeniqua
- Lepidochrysops penningtoni
- Lepidochrysops pephredo
- Lepidochrysops poseidon
- Lepidochrysops pringlei
- Lepidochrysops quickelbergei
- Lepidochrysops swanepoeli
- Lepidochrysops titei
- Lepidochrysops victori
- Lepidochrysops wykehami
- Lepidothelphusa cognetti
- Leprous False Brook Salamander
- Leprus Chirping Frog
- Leptachatina lepida
- Leptaxis caldeirarum
- Leptaxis furva
- Leptaxis terceirana
- Leptaxis vetusa
- Leptaxis wollastoni
- Leptobrachium echinatum
- Leptocaris stromatolicolus
- Leptoglanis wamiensis
- Leptogomphus yayeyamensis
- Leptolalax arayai
- Leptoseris amitoriensis
- Leptoseris incrustans
- Leptoseris striata
- Leptoseris yabei
- Leptothorax buschingeri
- Leptothorax duloticus
- Leptothorax faberi
- Leptothorax minutissimus
- Leptoxis ampla
- Lesser Adjutant
- Lesser Antillean Iguana
- Lesser Bromeliad Treefrog
- Lesser Chameleon
- Lesser Dwarf Lemur
- Lesser Fish-eagle
- Lesser Flamingo
- Lesser Florican
- Lesser Green Leafbird
- Lesser Kestrel
- Lesser Kudu
- Lesser Leaf-nosed Bat
- Lesser Long-nosed Bat
- Lesser Marmoset Rat
- Lesser Night Gecko
- Lesser Nothura
- Lesser Prairie-chicken
- Lesser Rabbit Bandicoot
- Lesser Ranee Mouse
- Lesser Stick-nest Rat
- Lesser Stream Madagascar Frog
- Lesser Tube-nosed Fruit Bat
- Lesser White-fronted Goose
- Lesser Wooly Horseshoe Bat
- Lesser Yellow-shouldered Bat
- Lesuer's Rat-kangaroo
- Lethrinops macracanthus
- Lethrinops macrophthalmus
- Lethrinops micrentodon
- Lethrinops microdon
- Lethrinops oculatus
- Lethrinops stridae
- Letter-winged Kite
- Leuchocharis pancheri
- Leucocythere helenae
- Lewis' Stubfoot Toad
- Leyte Bubble-nest Frog
- Liangbei Lazy Toad
- Liardetia boninensis
- Liberia River Frog
- Liberian Greenbul
- Liberian Mongoose
- Lichen Weevil
- Lichuan Bell Toad
- Lichuan Lazy Toad
- Lifan Sucker Frog
- Light Robber Frog
- Light-mantled Albatross
- Lightfoot's Moss Frog
- Lilac-cheeked Kingfisher
- Lilac-crowned Amazon
- Lilford's Wall Lizard
- Lilian's Lovebird
- Lily Robber Frog
- Lily Shoals Elimia
- Limestone Salamander
- Limnonectes asperatus
- Limnonectes toumanoffi
- Limon Knobtail
- Limon Worm Salamander
- Limosa Stubfoot Toad
- Lina's Sunbird
- Lincoln's Climbing Salamander
- Linda's Treefrog
- Lindacatalina sumacensis
- Lindog
- Line-fronted Canastero
- Lined Seahorse
- Lined Silverside
- Lined Treefrog
- Liobagrus nigricauda
- Liolaemus huacahuasicus
- Liolaemus lutzae
- Liolaemus occipitalis
- Liolaemus rabinoi
- Lion's Hill Velvet Worm
- Lion-tailed Macaque
- Liosaccus pachygaster
- Liotelphusa gagei
- Liotelphusa laevis
- Liotelphusa quadrata
- Liparia
- Lipetz's Tropical Night Lizard
- Lipochromis sp. nov. 'backflash cryptodon'
- Lipochromis sp. nov. 'small obesoid'
- Lipochromis sp. nov. 'black cryptodon'
- Lipochromis sp. nov. 'parvidens-like'
- Lister's Gecko
- Lithochromis rubripinnis
- Lithochromis rufus
- Lithochromis xanthopteryx
- Lithophyllon ranjithi
- Litoria jungguy
- Litthabitella elliptica
- Little Blue Macaw
- Little Brown Bustard
- Little Bustard
- Little Colorado Spinedace
- Little Corn Island Frog
- Little Earth Hutia
- Little Goblin Bat
- Little Golden-mantled Flying Fox
- Little Hairy-footed Gerbil
- Little Henty Freshwater Snail
- Little Inca-finch
- Little Mariana Fruit Bat
- Little Pied Bat
- Little Planigale
- Little Slaty Flycatcher
- Little Spotted Cat
- Little Spotted Kiwi
- Little Sumba Hawk-owl
- Little Tennessee Crayfish
- Little White Whiptail
- Little Wood Elf
- Little Woodstar
- Little Woolly Mouse Opossum
- Littlewing Pearlymussel
- Liver-oil Shark
- Lizard Catshark
- Loach Minnow
- Loango Slender-billed Weaver
- Lobaunia danubialis
- Lobophyllia dentatus
- Lobophyllia diminuta
- Lobophyllia flabelliformis
- Lobophyllia pachysepta
- Lobophyllia serratus
- Lobster Claw Crab
- Loggerhead Sea Turtle
- Loja Rocket Frog
- Loja Water Frog
- Loka Flying Frog
- Lokia coryndoni
- Lolokou Sucker Frog
- Lombok Cross Frog
- Lomi's Blind Legless Skink
- Lompobatang Flycatcher
- Lompoc Grasshopper
- Lonchophylla concava
- Long-bearded Melidectes
- Long-billed Apalis
- Long-billed Black Cockatoo
- Long-billed Bush-warbler
- Long-billed Murrelet
- Long-billed Partridge
- Long-clawed Mole Vole
- Long-fingered Bat
- Long-fingered Frog
- Long-fingered Stream Toad
- Long-footed Potoroo
- Long-haired Spider Monkey
- Long-headed Hill Rat
- Long-horned Beetle
- Long-legged Brown Frog
- Long-legged Cave Amphipod
- Long-Legged Warbler
- Long-legged Worm-skink
- Long-nosed Climbing Salamander
- Long-nosed Skate
- Long-snouted Bat
- Long-tailed Big-footed Mouse
- Long-tailed Chinchilla
- Long-tailed Cinclodes
- Long-tailed Fantail
- Long-tailed Fat-tailed Opossum
- Long-tailed Forest Shrew
- Long-tailed Goral
- Long-tailed Ground Roller
- Long-tailed Marsupial-mouse
- Long-tailed Otter
- Long-tailed Paradigalla
- Long-tailed Parakeet
- Long-tailed Sabrewing
- Long-tailed Talaud Mosaic-tailed Rat
- Long-tailed Woodnymph
- Long-tailed Wren-babbler
- Long-wattled Umbrellabird
- Long-whiskered Owlet
- Longdong Stream Salamander
- Longest Climbing Salamander
- Longfin Mako
- Longfin Svetovidov's Char
- Longfoot Robber Frog
- Longheaded Eagle Ray
- Longhorn Fairy Shrimp
- Longnose Bromeliad Salamander
- Longnose Eagle Ray
- Longtail Butterfly Ray
- Longtail False Brook Salamander
- Longtail Rattlesnake
- Longtail Suckermouth
- Lonnbergs Toad
- Lonoke Crayfish
- Lord Howe Island Skink
- Lord Howe Island Southern Gecko
- Lord Howe Island Stick-insect
- Lord Howe Long-eared Bat
- Lord Howe Wood Rail
- Los Bracitos Treefrog
- Los Chalchaleros' Vizcacha Rat
- Los Diamantes Worm Salamander
- Los Queules Ground Frog
- Lost River Sucker
- Lotis Blue Butterfly
- Loud Big-eyed Treefrog
- Louisea balssi
- Louisea edeaensis
- Louisiana Pearl Shell
- Louisiana Pine Snake
- Lovenula excellens
- Lovenula simplex
- Loveridge's Forest Frog
- Loveridge's Frog
- Loveridge's Sunbird
- Lower Cerro Minute Salamander
- Lower Keys Marsh Rabbit
- Lowland Anoa
- Lowland Grainy Frog
- Lowland Long-nosed Squirrel
- Lowland Red Forest Rat
- Lowland Sulawesi Haeromys
- Lowveld Largemouth
- Loyalty Bent-winged Bat
- Lubok Antu Bubble-nest Frog
- Lucifuga simile
- Lucifuga spelaeotes
- Lucifuga subterranea
- Lucifuga teresinarum
- Lucina's Shrew
- Luciobarbus brachycephalus
- Luciobarbus capito
- Luciobarbus comizo
- Luciobarbus graecus
- Luciobarbus guiraonis
- Luciobarbus microcephalus
- Luciobarbus steindachneri
- Ludlow's Bhutan Swallowtail
- Lugbe River Crab
- Luidan Stream Toad
- Lulu's Tody-tyrant
- Lund's Atlantic Tree Rat
- Lungshen Odorous Frog
- Luschan's Salamander
- Lutilodix imitratrix
- Lutz's River Frog
- Luvubu Reed Frog
- Luzon Bleeding-heart
- Luzon Fanged Frog
- Luzon Frog
- Luzon Hairy-tailed Rat
- Luzon Narrow-mouthed Frog
- Luzon Peacock Swallowtail
- Luzon Racquet-tail
- Luzon Scops-owl
- Luzon Striped-babbler
- Luzon Water-redstart
- Luzon Wrinkled Ground Frog
- Lycaena ottomanus
- Lyle's Flying Fox
- Lynch's Colombian Treefrog
- Lynch's Giant Glass Frog
- Lynch's Stubfoot Toad
- Lynn's Robber Frog
- Lyrate Grappletail
- Mable's Robber Frog
- Macaroni Penguin
- Macaya Burrowing Frog
- Macaya Dusky Frog
- Maccoa Duck
- MacConnell's Bush Toad
- MacDougall's Minute Salamanders
- Macgregor's Skink
- Mackenzie's Cave Amphipod
- Maclaud's Horseshoe Bat
- Macmillan's Shrew
- Macromia flinti
- Macromia kubokaiya
- Macromia margarita
- Macromia splendens
- Macromidia ishidai
- Macroperipatus insularis
- Macropleurodus bicolor
- Madagapotamon humberti
- Madagascan Flying Fox
- Madagascan Friar
- Madagascan Fruit Bat
- Madagascan Mantella
- Madagascan Rousette
- Madagascar Big-headed Turtle
- Madagascar Boa
- Madagascar Climbing Frog
- Madagascar Crested Ibis
- Madagascar Day Gecko
- Madagascar Forest Chameleon
- Madagascar Frog
- Madagascar Giant Treefrog
- Madagascar Harrier
- Madagascar Heron
- Madagascar Jumping Frog
- Madagascar Kob
- Madagascar Little Grebe
- Madagascar Plover
- Madagascar Pochard
- Madagascar Pond-heron
- Madagascar Pratincole
- Madagascar Radiated Tortoise
- Madagascar Rail
- Madagascar Rain Frog
- Madagascar Red Owl
- Madagascar Sacred Ibis
- Madagascar Sea Eagle
- Madagascar Serpent Eagle
- Madagascar Skate
- Madagascar Snipe
- Madagascar Sparrowhawk
- Madagascar Teal
- Madagascar Tree Boa
- Madagascar Yellowbrow
- Madame Berthe's Mouse Lemur
- Madeira Brimstone (Butterfly)
- Madeira Laurel Pigeon
- Madeira Pipistrelle
- Madeiran Large White
- Madison Cave Isopod
- Madla's Cave Meshweaver
- Madura Horseshoe Bat
- Magazine Mountain Middle-toothed Snail
- Magdalena Giant Glass Frog
- Magdalena Wood Rat
- Magellanic Penguin
- Magellanic Plover
- Magellanic Tuco-tuco
- Magenta Petrel
- Magnificent Broodfrog
- Magnificent Ramshorn
- Magnificent Web-footed Salamander
- Mahajanga Reed Frog
- Maharira Madagascar Frog
- Mahatha helaya
- Mahatha iora
- Mahatha lacuna
- Mahatha regina
- Mahe Caecilian
- Mahogany Glider
- Mahogany Presba
- Mainitia mainitensis
- Mainstream River Snail
- Maisi Frog
- Major Black Millipede
- Makatea Fruit-dove
- Makira Flycatcher
- Makira Flying Fox
- Makira Leaf-nosed Bat
- Makira Moorhen
- Makira Thrush
- Malabar Black Narrow-mouthed Frog
- Malabar Dot Frog
- Malabar Grouper
- Malabar Indian Frog
- Malabar Large-spotted Civet
- Malabar Pied Hornbill
- Malabar Spiny Dormouse
- Malabar Tropical Frog
- Malagasy Civet
- Malagasy Giant Jumping Rat
- Malagasy Mongoose
- Malagasy Narrow-striped Mongoose
- Malaita Fantail
- Malayan Flat-shelled Turtle
- Malayan Free-tailed Bat
- Malayan Peacock-pheasant
- Malayan Slit-faced Bat
- Malayan Snail-eating Turtle
- Malayan Sun Bear
- Malayan Tailless Leaf-nosed Bat
- Malayan Water Shrew
- Malayopotamon granulatum
- Malaysian Blue-flycatcher
- Malaysian Borneo Frog
- Malaysian Bubble-nest Frog
- Malaysian Flying Frog
- Malaysian Grainy Frog
- Malaysian Honeyguide
- Malaysian Plover
- Malaysian Rail-babbler
- Malcolm's Ethiopia Toad
- Maldonado Redbelly Toad
- Maleo Megapode
- Malesian Frog
- Malherbe's Parakeet
- Malheur Cave Amphipod
- Malindi Pipit
- Mallee Emuwren
- Mallee Worm-lizard
- Malleefowl
- Mallorcan Midwife Toad
- Maloti Minnow
- Maltese Ray
- Malvasa Stubfoot Toad
- Manado Rousette
- Manalak
- Manchurian Reed-warbler
- Mandarin Shark
- Mandelli's Mouse-eared Myotis
- Mandibularca resinus
- Mandras Shemaya
- Mandrill
- Maned Wolf
- Manenguba Shrew
- Mangaia Kingfisher
- Mangrove Finch
- Mangrove Frog
- Mangrove Hummingbird
- Mangrove Pitta
- Mangshan Horned Toad
- Manica parasitica
- Manipur Bush-quail
- Mannophryne caquetio
- Mannophryne collaris
- Mannophryne cordilleriana
- Mannophryne herminae
- Mannophryne lamarcai
- Mannophryne leonardoi
- Mannophryne neblina
- Mannophryne olmonae
- Mannophryne riveroi
- Mannophryne trinitatis
- Mannophryne trujillensis
- Mannophryne venezuelensis
- Mannophryne yustizi
- Mantanani Scops-owl
- Mantidactylus delormei
- Mantiqueira Atlantic Tree Rat
- Mantled Hawk
- Mantled Howler Monkey
- Manuel's Skink
- Manus Fantail
- Manus Island Mosaic-tailed Rat
- Manus Island Tree Snail
- Manus Masked-owl
- Manus Monarch
- Manusela Mosaic-tailed Rat
- Mao
- Maquis Canastero
- Maracaibo Tody-flycatcher
- Maraene
- Maranon Crescentchest
- Maranon Poison Frog
- Maranon Spinetail
- Marbled Cat
- Marbled Disc
- Marbled Dot Frog
- Marbled Freshwater Stingray
- Marbled Malachite
- Marbled Murrelet
- Marbled Rain Frog
- Marbled Robber Frog
- Marbled Streamlined Frog
- Marbled Teal
- Marbled Water Frog
- Marcella's Graceful Brown Snake
- Marcusenius sp. nov. 'Malindi'
- Marcusenius sp. nov. 'Turkwell'
- Marcusenius victoriae
- Margarita Island Kangaroo Rat
- Margay
- Maria Island Ground Lizard
- Maria Island Snake
- Maria's Giant Glass Frog
- Mariana Crow
- Mariana Fruit-dove
- Mariana Gray Swiftlet
- Marianas Flying Fox
- Marine Otter
- Marinkelle's Sword-nosed Bat
- Maritime Worm Salamander
- Markhor
- Marley's Butterflyfish
- Marley's Golden Mole
- Marmaris Salamander
- Maroon Pigeon
- Maroon-breasted Philentoma
- Maroon-chinned Fruit-dove
- Maroon-faced Parakeet
- Maroon-fronted Parrot
- Marquesan Ground-dove
- Marquesan Imperial Pigeon
- Marquesan Kingfisher
- Marquesan Monarch
- Marron
- Marsh Babbler
- Marsh Deer
- Marsh Grassbird
- Marsh Seedeater
- Marsh Tapaculo
- Martelia tanganyicensis
- Martenstyn's Barb
- Martinique Oriole
- Martinique Robber Frog
- Martinique Trembler
- Marungu Sunbird
- Marvellous Spatuletail
- Mary River Turtle
- Maryland Darter
- Masafuera Rayadito
- Masarang Frog
- Mascarene Black Petrel
- Mascarene Crow
- Mascarene Swiftlet
- Masked Antpitta
- Masked Finfoot
- Masked Hamlet
- Masked Mountain-tanager
- Masked Saltator
- Masked Shining-parrot
- Mastigodiaptomus purpureus
- Matalote Cahita
- Matalote Conchos
- Matalote Del Bavispe
- Matalote Opata
- Matang Asian Toad
- Matang Stream Toad
- Matheran Indian Frog
- Mathewsoconcha belli
- Matinan Flycatcher
- Matouba Robber Frog
- Matthias Fantail
- Matuda's Arboreal Alligator Lizard
- Matuda's Spikethumb Frog
- Maud Island Frog
- Maugean Skate
- Maui Alauahio
- Maui Parrotbill
- Mauritian Friar
- Mauritius Cuckoo-shrike
- Mauritius Fody
- Mauritius Kestrel
- Mauritius Olivaceous Bulbul
- Mauritius Olive White-eye
- Mauritius Parakeet
- Mauroa White-lipped Frog
- Mautodontha boraborensis
- Mautodontha ceuthma
- Mauve Bluet
- Mavomavo Giant Treefrog
- Mawblang Toad
- Maya Knobtail
- Maya Mountains Frog
- Maya Pupfish
- Mayan Deer Mouse
- Maydelliathelphusa edentula
- Maylandia aurora
- Maylandia benetos
- Maylandia callainos
- Maylandia chrysomallos
- Maylandia cyneusmarginata
- Maylandia emmiltos
- Maylandia estherae
- Maylandia greshakei
- Maylandia hajomaylandi
- Maylandia heteropicta
- Maylandia lombardoi
- Maylandia mbenjii
- Maylandia melabranchion
- Maylandia phaeos
- Maylandia pursa
- Maylandia pyrsonotos
- Maylandia sandaracinos
- Maylandia thapsinogen
- Maylandia xanstomachus
- Mayor's Mouse
- Mayotte Drongo
- Mbipia lutea
- Mbozi Suckermouth
- McCord's Box Turtle
- McDiarmid Minute Salamander
- Mcdonald's Frog
- Mcgregor's Cuckooshrike
- McGregor's Stream Toad
- Mckay's Bunting
- Mclachlan's Girdled Lizard
- Meadow Viper
- Mearns's Squirrel
- Mecistogaster asticta
- Mecistogaster pronoti
- Mediterranean Horseshoe Bat
- Mediterranean Monk Seal
- Mediterranean Trout
- Medium Tree-finch
- Medium-tailed Brush-furred Rat
- Meek's Lorikeet
- Megalobulimus fragilion
- Megalobulimus grandis
- Megalobulimus lopesi
- Megalobulimus parafragilior
- Megalobulimus proclivis
- Megalomyrmex symmetochus
- Mehely's Horseshoe Bat
- Mekhongthelphusa kengsaphu
- Mekhongthelphusa tetragona
- Mekong Freshwater Stingray
- Mekong Wagtail
- Meladema imbricata
- Meladema lanio
- Melanochromis baliodigma
- Melanochromis chipokae
- Melanochromis cyaneorhabdos
- Melanochromis dialeptos
- Melanochromis elastodema
- Melanochromis heterochromis
- Melanochromis interruptus
- Melanochromis joanjohnsonae
- Melanochromis johannii
- Melanochromis lepidiadaptes
- Melanochromis loriae
- Melanochromis mellitus
- Melanochromis perileucos
- Melanochromis xanthodigma
- Melanoides admirabilis
- Melanoides polymorpha
- Melanoides pupiformis
- Melanoides truncatelliformis
- Melanoides turritispira
- Melanophryniscus admirabilis
- Melanophryniscus cupreuscapularis
- Melanophryniscus dorsalis
- Melanopsis etrusca
- Meliana Climbing Salamander
- Melissa's Yellow-eared Bat
- Meller's Duck
- Melodious Babbler
- Melodious Lark
- Melones Cave Harvestman
- Mendolong Bubble-nest Frog
- Menglun Eastern Frog
- Mentawai Archipelago Rat
- Mentawai Langur
- Mentawai Long-tailed Giant Rat
- Mentawai Scops-owl
- Mentawai Squirrel
- Mentawai Three-striped Squirrel
- Mentawi Flying Squirrel
- Menzbier's Marmot
- Merida Andes Treefrog
- Merida Brocket
- Merida Tree Frog
- Meridolum benneti
- Meridolum corneovirens
- Meridolum depressum
- Merriam's Montezuma Quail
- Merry Shadowdamsel
- Mertens' Egg Frog
- Mertens' Smalltongue Toad
- Mesa Shoulderband
- Mesagrion leucorrhinum
- Mesocyclops insulensis
- Mesonerilla prospera
- Mesopotamia Beaked Toad
- Metacyclops gasparoi
- Metacyclops postojnae
- Metadiaptomus capensis
- Metadiaptomus purcelli
- Metaphryniscus sosai
- Metatrichoniscoides celticus
- Methuen's Dwarf Gecko
- Metrioptera domogledi
- Metropolitan Redspot
- Mexclapique
- Mexican Agouti
- Mexican Big-eared Bat
- Mexican Black-tailed Pit Viper
- Mexican Blindcat
- Mexican Bobcat
- Mexican Caecilian
- Mexican Darter
- Mexican Golden Trout
- Mexican Horned Pitviper
- Mexican Long-nosed Bat
- Mexican Long-tongued Bat
- Mexican Pine Woods Treefrog
- Mexican Prairie Dog
- Mexican Sheartail
- Mexican Spotted Terrapin
- Mexican Water Mouse
- Mexican Woodnymph
- Mexican Yellow-bellied Brown Snake
- Mexilana saluposi
- Mexistenasellus nulemex
- Miahuatlan Cotton Rat
- Miami Cave Crayfish
- Michael Rainforest Frog
- Michigan Bog Grasshopper
- Michoacan Pocket Gopher
- Michoacan Stream Salamander
- Microhylid Frog
- Micromacromia miraculosa
- Micromussa-Super Red
- Micronesian Imperial-pigeon
- Micronesian Megapode
- Microstrophia modesta
- Microstrophia nana
- Microthelphusa forcarti
- Mictacean
- Middlekauf's Shieldback Katydid
- Midongy Madagascar Frog
- Migmathelphusa olivacea
- Miguel's Ground Frog
- Mikado Pheasant
- Milagros' Tiger
- Miles Wall Lizard
- Military Macaw
- Milky Stork
- Millepora boschmai
- Millepora foveolata
- Millepora latifolia
- Millepora murrayi
- Millepora striata
- Millepora tuberosa
- Miller's Nicobar Rat
- Miller's Snail
- Milne Bay Frog
- Milne Mehely Frog
- Milne-Edward's Sifaka
- Milne-edwards' Macaque
- Milne-Edwards's Sportive Lemur
- Mimic Cavesnail
- Minas Gerais Tyrannulet
- Mindanao Bleeding-heart
- Mindanao Broadbill
- Mindanao Brown-dove
- Mindanao Flathead Toad
- Mindanao Flying Frog
- Mindanao Horned Frog
- Mindanao Lorikeet
- Mindanao Montane Forest Apomys
- Mindanao Pygmy-babbler
- Mindanao Racquet-tail
- Mindanao Scops-owl
- Mindanao Shrew Mouse
- Mindanao Spiny Rat
- Mindo Cochran Frog
- Mindo Robber Frog
- Mindo Stubfoot Toad
- Mindoro Bleeding-heart
- Mindoro Hornbill
- Mindoro Imperial-pigeon
- Mindoro Scops-owl
- Mindoro Striped Rat
- Miniature Robber Frog
- Minor Black Millipede
- Minor Red Bat
- Minute Cave Amphipod
- Minute Pearlfish
- Miramella irena
- Miranda Robber Frog
- Miratesta celebensis
- Mishana Tyrannulet
- Mission Creek Oregonian
- Mississippi Flatwoods Crayfish
- Mitchell's Rainforest Snail
- Mitchell's Satyr Butterfly
- Mitred Leaf Monkey
- Mittendorf's Striped Grass Mouse
- Mittermeier's Bubble-nest Frog
- Mittermeier's Mouse Lemur
- Mittermeier's Stubfoot Toad
- Mixe Treefrog
- Mixtecan Arboreal Alligator Lizard
- Miyako Tango
- Miyazaki's Crab
- Moapa Dace
- Moapa Pebblesnail
- Mocha Island Ground Frog
- Modoc Sucker
- Moerner's Swallowtail Butterfly
- Mohave Ground Squirrel
- Mohave Tui Chub
- Moheli Scops-owl
- Moitessieria corsica
- Moitessieria juvenisanguis
- Moitessieria locardi
- Mojarra (Cichlasoma bartoni)
- Mojarra (Cichlasoma labridens)
- Mojarra (Cichlasoma minckleyi)
- Mojarra (Cichlasoma pantostictum)
- Mojarra (Cichlasoma steindachneri)
- Molly Del Tamesi
- Molly Del Teapa
- Molokai Creeper
- Molokai Damselfly
- Molokai Thrush
- Moluccan Cuckoo
- Moluccan Flying Fox
- Moluccan Megapode
- Moluccan Woodcock
- Mombacho Salamander
- Mona Blind Snake
- Mona Cave Shrimp
- Mona Coqui
- Mongo
- Mongolian Beaver
- Mongolian Marmot
- Mongoose Lemur
- Monito Del Monte
- Monito Gecko
- Monjon
- Monolistra bolei
- Monolistra calopyge
- Monolistra schottlaenderi
- Monolistra spinosissima
- Monomorium effractor
- Monomorium hospitum
- Monomorium inquilinum
- Monomorium noualhieri
- Monomorium pergandei
- Monomorium santschii
- Monomorium talbotae
- Monster Rice Rat
- Montagne d'Ambre Madagascar Frog
- Montane Cricket Frog
- Montane Dancing-jewel
- Montane Demoiselle
- Montane Monkey-faced Bat
- Montane Mouse Shrew
- Montane Shaggy Rat
- Montastraea annularis
- Montastraea faveolata
- Montastraea franksi
- Montastrea annuligera
- Montastrea colemani
- Montastrea magnistellata
- Montastrea multipunctata
- Montastrea salebrosa
- Montastrea serageldini
- Montastrea valenciennesi
- Monte Albo Cave Salamander
- Monte Cristo Arboreal Alligator Lizard
- Monte Escondido Salamander
- Monte Iberia Dwarf Frog
- Monte Verde Golden Toad
- Monterissa gowerensis
- Monterrey Platyfish
- Monterrey Spanish Mackerel
- Monteverde Moss Salamander
- Montevideo Redbelly Toad
- Montipora altasepta
- Montipora angulata
- Montipora australiensis
- Montipora cactus
- Montipora calcarea
- Montipora caliculata
- Montipora capitata
- Montipora capricornis
- Montipora cebuensis
- Montipora cocosensis
- Montipora confusa
- Montipora corbettensis
- Montipora crassituberculata
- Montipora cryptus
- Montipora delicatula
- Montipora dilatata
- Montipora efflorescens
- Montipora effusa
- Montipora flabellata
- Montipora florida
- Montipora foliosa
- Montipora foveolata
- Montipora friabilis
- Montipora gaimardi
- Montipora hirsuta
- Montipora hodgsoni
- Montipora incrassata
- Montipora lobulata
- Montipora mactanensis
- Montipora malampaya
- Montipora meandrina
- Montipora niugini
- Montipora nodosa
- Montipora orientalis
- Montipora palawanensis
- Montipora patula
- Montipora peltiformis
- Montipora porites
- Montipora samarensis
- Montipora saudii
- Montipora setosa
- Montipora stilosa
- Montipora turtlensis
- Montipora undata
- Montipora venosa
- Montipora verruculosus
- Montipora vietnamensis
- Montseny Brook Newt
- Montserrat Galliwasp
- Montserrat Oriole
- Monzon's Moss Salamander
- Moojen's Atlantic Spiny-rat
- Moom Pebblesnail
- Moon Coral (Favites abdita)
- Moon Coral (Favites acuticollis)
- Moon Coral (Favites bestae)
- Moon Coral (Favites chinensis)
- Moon Coral (Favites complanata)
- Moon Coral (Favites flexuosa)
- Moon Coral (Favites halicora)
- Moon Coral (Favites micropentagona)
- Moon Coral (Favites paraflexuosa)
- Moon Coral (Favites russelli)
- Moon Coral (Favites spinosa)
- Moon Coral (Favites stylifera)
- Moon Coral (Favites vasta)
- Moon Forest Shrew
- Moon Striped Mouse
- Moon-toothed Degu
- Moor Macaque
- Moore's Frog
- Moorish Viper
- Moray Bubble-nest Frog
- Morden's Owlet
- Moreau's Sunbird
- Morelet's Crocodile
- Morelet's Treefrog
- Morelos False Brook Salamander
- Morere's Banana Frog
- Morimus funereus
- Morishita's Tiger
- Moritschus altaquerensis
- Moritschus ecuadorensis
- Morne Macay Robber Frog
- Morningside Bubble-nest Frog
- Moroccan Midwife Toad
- Moroccan Three-toed Skink
- Morona-Santiago Stubfoot Toad
- Morrison's Cave Amphipod
- Morro Bay Kangaroo Rat
- Morro Shoulderband Snail
- Moserius percoi
- Mosor Rock Lizard
- Moss-backed Turtle
- Moss-forest Blossom Bat
- Mottled Bubble-nest Frog
- Mottled Eagle Ray
- Mottled Petrel
- Mottled Piculet
- Mottled Tuco-tuco
- Mouldingia occidentalis
- Mouldingia orientalis
- Mount Bulgar Viper
- Mount Cameroon Francolin
- Mount Cameroon Speirops
- Mount Cooper Striped Lerista
- Mount Data Forest Frog
- Mount Donna Buang Wingless Stonefly
- Mount Graham Red Squirrel
- Mount Kahuzi African Climbing Mouse
- Mount Karthala White-eye
- Mount Kosciusko Wingless Stonefly
- Mount Kupe Bush-shrike
- Mount Lumaku Bubble-nest Frog
- Mount Meru Stream Frog
- Mount Omoto-dake Frog
- Mount St. Helens' Grylloblattid
- Mount Talamau Bubble-nest Frog
- Mount Tucutche Treefrog
- Mount Wuliang Sucker Frog
- Mount Zempoaltepec Alligator Lizard
- Mountain Alcon Blue
- Mountain Anoa
- Mountain Blackside Dace
- Mountain Borneo Frog
- Mountain Cave Amphipod
- Mountain Climbing Frog
- Mountain Dot Frog
- Mountain Dwarf Galago
- Mountain Egg Frog
- Mountain Mistfrog
- Mountain Night Frog
- Mountain Nyala
- Mountain Paca
- Mountain Pademelon
- Mountain Peacock-pheasant
- Mountain Plover
- Mountain Pygmy Possum
- Mountain Serpent-eagle
- Mountain Shrew Tenrec
- Mountain Shrike
- Mountain Skink
- Mountain Tapir
- Mountain Toad
- Mountain Viper
- Mountain Wrinkled Ground Frog
- Mountain Yellow-legged Frog
- Mountain Zebra
- Mountain-top Nursery-frog
- Mourning Treefrog
- Moustached Antpitta
- Moustached Hawk-cuckoo
- Moustached Kingfisher
- Moustached Woodcreeper
- Mout Okou Wolterstorff Toad
- Mozart's Frog
- Mrora Forest Toad
- Mrs. Moreau's Warbler
- Mt. Hermon June Beetle
- Mt. Isarog Striped Rat
- Mt. Kenya Mole Shrew
- Mt. Lefo Brush-furred Rat
- Mt. Okou Long-fingered Frog
- Mt. Oku Kylomyscus
- Mt. Oku Rat
- Muckalee Crayfish
- Mucubaji Stubfoot Toad
- Mud Elimia
- Muddy Rocksnail
- Mueller's Bornean Gibbon
- Mugger Crocodile
- Mugilogobius adeia
- Mugilogobius latifrons
- Muller's Climbing Salamander
- Muller's Stream Toad
- Multicolored Tanager
- Multispine Skate
- Mulu Flying Frog
- Munchique Wood-wren
- Munchkin Skate
- Munk's Devil Ray
- Munnar Bubble-nest Frog
- Murphy's Crow
- Murphy's Petrel
- Murray Cod
- Murray Hardyhead
- Murud Bubble-nest Frog
- Muruk Mio Bubble-nest Frog
- Muscular Salamander
- Musso's Fish-eating Rat
- Mussonena campbelli
- Mustache False Brook Salamander
- Mutela alata
- Mutton Snapper
- Myaka Myaka
- Mycedium steeni
- Myers' Surinam Toad
- Myrmecia inquilina
- Myrmica bibikoffi
- Myrmica colax
- Myrmica ereptrix
- Myrmica faniensis
- Myrmica hirsuta
- Myrmica kabylica
- Myrmica lampra
- Myrmica laurae
- Myrmica lemasnei
- Myrmica myrmicoxena
- Myrmica quebecensis
- Myrmica samnitica
- Myrmica symbiotica
- Myrmica winterae
- Myrmoxenus gordiagini
- Mysore Ornamental
- Naegele Springsnail
- Nahampoana Bright-eyed Frog
- Nahan's Francolin
- Nahuelbuta Ground Frog
- Naked Characin
- Naked Tropical Frog
- Namaqua Dwarf Adder
- Namaqua Stream Frog
- Namdapha Flying Squirrel
- Namoi River Snapping Turtle
- Namuli Apalis
- Nankiang Horned Toad
- Nanocochlea monticola
- Nanocochlea pupoidea
- Nanocopia minuta
- Nanodectes bulbicercus
- Nanogovios
- Naomi's Forest Frog
- Napaeus isletae
- Napo Giant Glass Frog
- Napo Plump Toad
- Napo Sabrewing
- Napo Stubfoot Toad
- Narcine leoparda
- Narcondam Hornbill
- Narrow Pigtoe
- Narrow-billed Antwren
- Narrow-bridged Mud Turtle
- Narrow-footed Worm Salamander
- Narrow-headed Softshell Turtle
- Narrow-lined Treefrog
- Narrow-mouthed Toad
- Narrow-nosed Harvest Mouse
- Narrownose Smoothhound
- Narrowsnout Sawfish
- Narwhal
- Nasolo's Shrew Tenrec
- Nassau Grouper
- Natal Banana Frog
- Natal Black Millipede
- Natal Free-tailed Bat
- Natterer's Longwing
- Natuna Island Surili
- Nauru Reed-warbler
- Nautilothelphusa zimmeri
- Nava's Wren
- Navajo Jerusalem Cricket
- Nayarit Deer Mouse
- Neatly-spotted Bubble-nest Frog
- Neblina Metaltail
- Neblina Uakari
- Neches Crayfish
- Nechisar Nightjar
- Needle Dogfish
- Neergaard's Sunbird
- Negev Tortoise
- Neglected Frog
- Negros Bleeding-heart
- Negros Fruit-dove
- Negros Naked-backed Fruit Bat
- Negros Shrew
- Negros Striped-babbler
- Negros Wrinkled Ground Frog
- Nehalennia speciosa
- Nekogigi Catfish
- Nelson's Antelope Squirrel
- Nelson's Giant Deer Mouse
- Nelson's Small Eared Shrew
- Nelson's Spiny Pocket Mouse
- Nelson's Woodrat
- Nemacheilus dori
- Nemacheilus jordanicus
- Nemacheilus pantheroides
- Nemacheilus sp. nov.
- Nemacheilus starostini
- Nemacheilus troglocataractus
- Nemenzophyllia Fox Coral
- Nemoron nomas
- Neochromis gigas
- Neochromis greenwoodi
- Neochromis simotes
- Neodiaptomus intermedius
- Neodiaptomus laii
- Neodiaptomus lymphatus
- Neodiaptomus physalipus
- Neolamprologus christyi
- Neolamprologus schreyeni
- Neolissochilus theinemanni
- Neoplanorbis tantillus
- Neopseudothelphusa fossor
- Neosho Mucket
- Neostrengeria perijaensis
- Nepal Paa Frog
- Nepogomphoides stuhlmanni
- Neritina tiassalensis
- Nesopupa madgei
- Neurergus kaiseri
- Neuse River Waterdog
- Nevada Pupfish
- Nevado de Colima Chirping Frog
- New Britain Bronzewing
- New Britain Goshawk
- New Britain Kingfisher
- New Britain Land Frog
- New Britain Rail
- New Britain Sparrowhawk
- New Britain Thrush
- New Caledonia Blossom Bat
- New Caledonia Catshark
- New Caledonia Flying Fox
- New Caledonia Long-eared Bat
- New Caledonia Wattled Bat
- New Caledonian Grassbird
- New Caledonian Imperial-pigeon
- New Caledonian Lorikeet
- New Caledonian Owlet-nightjar
- New Caledonian Parakeet
- New Caledonian Wood Rail
- New England Cottontail
- New Georgia Monkey-faced Bat
- New Guinea Eagle
- New Guinea Flightless Rail
- New Guinea Pademelon
- New Guinea Quoll
- New Guinea River Shark
- New Holland Mouse
- New Ireland Yellow Tiger
- New Mexico Hotspring Snail
- New Zealand Bushwren
- New Zealand Falcon
- New Zealand Greater Short-tailed Bat
- New Zealand Grebe
- New Zealand Kaka
- New Zealand King Shag
- New Zealand Lesser Short-tailed Bat
- New Zealand Long-tailed Bat
- New Zealand Pigeon
- New Zealand Sea Lion
- New Zealand Shore Plover
- New Zealand Snipe
- New Zealand Storm-petrel
- New Zealand Thrush
- Newcomb's Snail
- Newcomb's Tree Snail (Newcombia canaliculata)
- Newcomb's Tree Snail (Newcombia cumingi)
- Newcomb's Tree Snail (Newcombia lirata)
- Newcomb's Tree Snail (Newcombia perkinsi)
- Newcomb's Tree Snail (Newcombia pfeifferi)
- Newcomb's Tree Snail (Newcombia sulcata)
- Newell's Shearwater
- Newman's Knob-Scaled Lizard
- Newnhamia fuscata
- Newnhamia insolita
- Newton's Grassland Frog
- Ngezi Reed Frog
- Ngoni Moss Frog
- Niangua Darter
- Niceforo's Stubfoot Toad
- Niceforo's Wren
- Niceforonia adenobrachia
- Nickajack Cave Isopod
- Nicklin's Pearlymussel
- Nicobar Bulbul
- Nicobar Crow
- Nicobar Flying Fox
- Nicobar Megapode
- Nicobar Parakeet
- Nicobar Pigeon
- Nicobar Sparrowhawk
- Nicobar Treeshrew
- Nicobar White-tailed Shrew
- Nicobarese Whipping Frog
- Nicobars Wart Frog
- Nienokoue Reed Frog
- Nietner's Grappletail
- Niger Stingray
- Nigeria Banana Frog
- Night Parrot
- Night Shark
- Nightingale Reed Warbler
- Nihoa Banza Conehead Katydid
- Nihoa Finch
- Nihoa Millerbird
- Nike's Squeaker
- Nile Lechwe
- Nilgiri Black Langur
- Nilgiri Bubble-nest Frog
- Nilgiri Flycatcher
- Nilgiri Long-tailed Climbing Mouse
- Nilgiri Marten
- Nilgiri Pipit
- Nilgiri Tahr
- Nilgiri Tropical Frog
- Nilgiri Wood-pigeon
- Nilgiris Wart Frog
- Nimba Banana Frog
- Nimba Flycatcher
- Nimba Otter Shrew
- Nimba Reed Frog
- Nimba Shrew
- Nimba Stream Crab
- Nimbaphrynoides liberiensis
- Nimble Long-limbed Salamander
- Ningbingia australis
- Ningbingia bulla
- Ningbingia dentiens
- Ningbingia laurina
- Ningbingia octava
- Ningbingia res
- Ninglang Paa Frog
- Niobe's Shrew
- Niphargobates lefkodemonaki
- Niphargobates orophobata
- Niphargus aberrans
- Niphargus hadzii
- Niphargus hrabei
- Niphargus sphagnicolus
- Niphargus spoeckeri
- Niphargus stenopus
- Niphargus timavi
- Niphargus valachicus
- Nirodia belphegor
- Nitocrella slovenica
- Nitocrella stochi
- Nkongsamba Frog
- Nkongsamba River Frog
- Noel's Amphipod
- Noellert's Toad
- Noisy Scrub-bird
- Nomorhamphus towoeti
- Non-parasitic Lamprey
- Norbert Bright-eyed Frog
- Nordmann's Greenshank
- Norfolcioconch iota
- Norfolcioconch norfolkensis
- Norfolk Island Gerygone
- Norfolk Island Parakeet
- Norfolk Island White-eye
- Nornalup Frog
- Noronha Elaenia
- Noronha Vireo
- North African Fire Salamander
- North Andean Huemul
- North Atlantic Right Whale
- North Borneo Stream Toad
- North Island Brown Kiwi
- North Moluccan Flying Fox
- North Pacific Right Whale
- North Shore Marsupial Frog
- Northeastern Xanthurus Rat
- Northern Abalone
- Northern Aplomado Falcon
- Northern Arboreal Alligator Lizard
- Northern Bahamian Rock Iguana
- Northern Bald Ibis
- Northern Black Millipede
- Northern Bobwhite
- Northern Brush-tailed Phascogale
- Northern Cassowary
- Northern Cavefish
- Northern Chiapas Anole
- Northern Chinese Flying Squirrel
- Northern Corroboree Frog
- Northern Draughtboard Shark
- Northern Flying Squirrel
- Northern Free-tailed Bat
- Northern Frog
- Northern Fur Seal
- Northern Giant-petrel
- Northern Glider
- Northern Guitarfish
- Northern Hairy-nosed Wombat
- Northern Hammer Frog
- Northern Helmeted Curassow
- Northern Hopping-mouse
- Northern Luzon Rhynchomys
- Northern Minute Salamander
- Northern Muriqui
- Northern Pig-tailed Macaque
- Northern Pudu
- Northern Quoll
- Northern Rockhopper Penguin
- Northern Roundgland Toad
- Northern Royal Albatross
- Northern Rufous Mouse Lemur
- Northern Screamer
- Northern Shrew Tenrec
- Northern Sportive Lemur
- Northern Swift Fox
- Northern Tinker Frog
- Northern Water Rat
- Northwestern Climbing Salamander
- Norton Plains Bubble-nest Frog
- Norton's Cave Amphipod
- Norton's Robber Frog
- Nosy Be Burrowing Frog
- Nosy Be Giant Treefrog
- Notable Large Burrowing Spider
- Nothobranchius aff. taeniopygus
- Nothobranchius albimarginatus
- Nothobranchius annectens
- Nothobranchius bojiensis
- Nothobranchius elongatus
- Nothobranchius flammicomantis
- Nothobranchius foerschi
- Nothobranchius geminus
- Nothobranchius interruptus
- Nothobranchius kilomberoensis
- Nothobranchius korthausae
- Nothobranchius lourensi
- Nothobranchius luekei
- Nothobranchius patrizii
- Nothobranchius rubripinnis
- Nothobranchius sp. nov. 'Lake Victoria'
- Nothobranchius steinforti
- Nothobranchius willerti
- Notodiaptomus dubius
- Notodiaptomus maracaibensis
- Notogomphus cottarellii
- Notogomphus maathaiae
- Notogomphus ruppeli
- Notopala sublineata
- Nsess
- Nsoung Long-fingered Frog
- Nubian Bustard
- Nubian Ibex
- Nueces Crayfish
- Nuevo Leon Graceful Brown Snake
- Nukupu'u
- Numbat
- Numfor Paradise-kingfisher
- Nyika Dwarf Toad
- O'ahu Creeper
- O'ahu Tree Snail (Achatinella abbreviata)
- O'donnell's Climbing Salamander
- O'u
- Oahu Amakihi
- Oahu Damselfly
- Oahu Deceptor Bush Cricket
- Oak Forest Salamander
- Oaxaca Sparrow
- Oaxaca Toad
- Oaxacan Arboreal Alligator Lizard
- Oaxacan Climbing Salamander
- Oaxacan Coral Snake
- Oaxacan Dwarf Boa
- Oaxacan False Brook Salamander
- Oaxacan Fringe-limbed Treefrog
- Oaxacan Giant Deer Mouse
- Oaxacan Giant Salamander
- Oaxacan Minute Salamander
- Oaxacan Spiny-tailed Iguana
- Oaxacan Yellow Treefrog
- Obelus despreauxii
- Obey Crayfish
- Obi Island Birdwing
- Occirhenea georgiana
- Oceanic Hawaiian Damselfly
- Oceanic Whitetip Shark
- Ocellated Bubble-nest Frog
- Ocellated Coral
- Ocellated Lizard
- Ocellated Quail
- Ocellated Turkey
- Ocelot
- Ochlockonee Moccasinshell
- Ochraceous Attila
- Ochraceous Piculet
- Ochre-bellied Dove
- Ochre-bellied Hawk-owl
- Ochre-breasted Pipit
- Ochre-fronted Antpitta
- Ochre-rumped Antbird
- Ochre-rumped Bunting
- Ochre-winged Honeyeater
- Ochthephila spirulina
- Ocmulgee Marstonia
- Oconee Burrowing Crayfish
- Oconee Stream Crayfish
- Octopus Coral (Galaxea acrhelia)
- Octopus Coral (Galaxea astreata)
- Octopus Coral (Galaxea cryptoramosa)
- Octopus Coral (Galaxea fascicularis)
- Octopus Coral (Galaxea longisepta)
- Octopus Coral (Galaxea paucisepta)
- Odaigahara Salamander
- Odontopodisma montana
- Odontopodisma rubripes
- Offachloritis dryanderensis
- Ogasawarana chichijimana
- Ogasawarana habei
- Ogasawarana metamorpha
- Ogasawarana rex
- Ogasawarana yoshiwarana
- Ogea Monarch
- Ogilby's Ghostshark
- Ohiya Rat
- Ohlone Tiger Beetle
- Ohrid Gudgeon
- Ohrid Spirlin
- Oita Salamander
- Okaloosa Darter
- Okapi
- Oki Salamander
- Okinawa Rail
- Okinawa Spiny Rat
- Okinawa Wart Frog
- Okinawa Woodpecker
- Okinawan Terrestrial Crab
- Oklahoma Cave Amphipod
- Oklahoma Cave Crayfish
- Oklahoma Salamander
- Oktedi Rainbowfish
- Oktibbeha Riverlet Crayfish
- Oku Mouse Shrew
- Olalla Brothers' Titi Monkey
- Oldfield White-bellied Rat
- Oligoaeschna kunigamiensis
- Olive Colobus
- Olive Grouper
- Olive Ridley Sea Turtle
- Olive-backed Woodpecker
- Olive-headed Weaver
- Olive-shouldered Parrot
- Olive-sided Flycatcher
- Olive-yellow Robin
- Oliver's Warty Pig
- Olm
- Oloma'o
- Olongburra Frog
- Olrog's Gull
- Olympic Torrent Salamander
- Omao
- Omei Horned Toad
- Omei Lazy Toad
- Omei Shan Liocichla
- Omilteme Cottontail
- Omiltemi Minute Salamander
- Omphalotropis hieroglyphica
- Onchotelson brevicaudatus
- Onchotelson spatulatus
- Onconotus servillei
- Oncorhynchus formosanus
- One-finned Shark
- One-toed Amphiuma
- Onefin Skate
- Onondaga Cave Amphipod
- Onychogomphus assimilis
- Onychogomphus costae
- Onychogomphus macrodon
- Onychogomphus styx
- Onychostoma alticorpus
- Opal Goodeid
- Opalescent Pearlfish
- Opanara altiapica
- Opanara areaensis
- Opanara bitridentata
- Opanara caliculata
- Opanara depasoapicata
- Opanara duplicidentata
- Opanara fosbergi
- Opanara megomphala
- Opanara perahuensis
- Opaque Pebblesnail
- Open Brain Coral
- Opisthostoma bihamulatum
- Opisthostoma decrespignyi
- Opisthostoma dormani
- Opisthostoma fraternum
- Opisthostoma inornatum
- Opisthostoma jucundum
- Opisthostoma mirabile
- Opisthostoma otostoma
- Opisthostoma perspectivum
- Opisthostoma simplex
- Opossum Shrimp
- Opsaridium microcephalum
- Opsaridium microlepis
- Orange Button Coral
- Orange Lake Cave Crayfish
- Orange Long-nosed Frog
- Orange-banded Flycatcher
- Orange-banded Thrush
- Orange-bellied Antwren
- Orange-bellied Flying Frog
- Orange-bellied Frog
- Orange-bellied Parakeet
- Orange-billed Babbler
- Orange-breasted Bush-shrike
- Orange-fringed River Bream
- Orange-fronted Barbet
- Orange-necked Partridge
- Orange-spotted Emerald
- Orange-throated Tanager
- Orangeblack Hawaiian Damselfly
- Orangefin Madtom
- Orangefoot Pimpleback Pearlymussel
- Orangia cookei
- Orangia maituatensis
- Orangia sporadica
- Orbiculus Leaf-nosed Bat
- Orchid Island Crab
- Orconectes bisectus
- Orconectes blacki
- Orconectes cooperi
- Orconectes deanae
- Orconectes hartfieldi
- Orconectes holti
- Orconectes incomptus
- Orconectes jeffersoni
- Orconectes jonesi
- Orconectes kentuckiensis
- Orconectes maletae
- Orconectes marchandi
- Orconectes menae
- Orconectes mississippiensis
- Orconectes peruncus
- Orconectes quadruncus
- Orconectes saxatilis
- Orconectes shoupi
- Orconectes sloanii
- Orconectes stannardi
- Orconectes wrighti
- Ordtrachia elegans
- Oregon Chub
- Oregon Giant Earthworm
- Oregon Slender Salamander
- Oregon Spotted Frog
- Orejas-Miranda Redbelly Toad
- Oreobates pereger
- Oreobates simmonsi
- Oreobates zongoensis
- Oreochromis alcalicus
- Oreochromis amphimelas
- Oreochromis andersonii
- Oreochromis chungruruensis
- Oreochromis esculentus
- Oreochromis hunteri
- Oreochromis jipe
- Oreochromis karomo
- Oreochromis karongae
- Oreochromis latilabris
- Oreochromis lidole
- Oreochromis macrochir
- Oreochromis mortimeri
- Oreochromis mossambicus
- Oreochromis ndalalani
- Oreochromis pangani
- Oreochromis rukwaensis
- Oreochromis squamipinnis
- Oreochromis variabilis
- Oreocnemis phoenix
- Oreonectes anophthalmus
- Oreophrynella cryptica
- Oreophrynella vasquezi
- Orestias chungarensis
- Organ Pipe Coral
- Oriental Darter
- Oriental Shrew
- Oriental White Stork
- Oriente Coastal Frog
- Oriente Greenish-yellow Frog
- Oriente Mottled Frog
- Orinoco Agouti
- Orinoco Crocodile
- Orinoco Goose
- Orinoco Softtail
- Orinoco Sword-nosed Bat
- Orizaba Minute Salamander
- Orlando Cave Crayfish
- Ornamental Snake
- Ornate Eagle Ray
- Ornate Egg Frog
- Ornate Flying Fox
- Ornate Horned Frog
- Ornate Slider
- Ornate Spiny Lizard
- Ornate Titi Monkey
- Ornithoptera meridionalis
- Oro Phantasmal Poison Frog
- Orphan Salamander
- Orthetrum poecilops
- Orthochromis kasuluensis
- Orthochromis luichensis
- Orthochromis malagaraziensis
- Orthochromis mazimeroensis
- Orthochromis mosoensis
- Orthochromis rubrolabialis
- Orthochromis rugufuensis
- Orthochromis uvinzae
- Orthrias tschaiyssuensis
- Oryzias celebensis
- Oryzias marmoratus
- Oryzias matanensis
- Oryzias nigrimas
- Oryzias orthognathus
- Oryzias profundicola
- Osgood's Ethiopian Toad
- Osornophryne sumacoensis
- Ospatulus palaemophagus
- Ostrich
- Otago Skink
- Otopharynx lithobates
- Otter Civet
- Otway Black Snail
- Otway Range Black Snail
- Ouachita Burrowing Crayfish
- Ouachita Madtom
- Ouachita Mountain Shiner
- Ouachita Rock Pocketbook
- Oulophyllia bennettae
- Oulophyllia crispa
- Oustalet's Tyrannulet
- Oval Pigtoe
- Ovate Clubshell
- Ovate Pebblesnail
- Owens Pupfish
- Owens Tui Chub
- Owl-faced Monkey
- Owston's Banded Palm Civet
- Oxapampa Frog
- Oxapampa Poison Frog
- Oxleyan Pygmy Perch
- Oxychilus agostinhoi
- Oxychilus amaltheae
- Oxychilus lineolatus
- Oxychilus oglasicola
- Oxyepoecus bruchi
- Oxyepoecus daguerrei
- Oxyepoecus inquilina
- Oxynoemacheilus pindus
- Oyster Mussel
- Ozark Cave Amphipod
- Ozark Cavefish
- Ozark Emerald
- Oziothelphusa biloba
- Oziothelphusa dakuna
- Oziothelphusa gallicola
- Oziothelphusa hippocastanum
- Oziothelphusa intuta
- Oziothelphusa kodagoda
- Oziothelphusa populosa
- Oziothelphusa ritigala
- Oziothelphusa stricta
- Oziothelphusa wagrakarowensis
- Pacarana
- Pachyhynobius yunanicus
- Pachypanchax sakaramyi
- Pachypanchax sp. nov. 'Anjingo'
- Pachypanchax sp. nov. 'Betsiboka'
- Pachypanchax sp. nov. 'Talio'
- Pachypanchax sp. nov. 'Varatraza'
- Pachysaga munggai
- Pachysaga strobila
- Pachyseris gemmae
- Pachyseris involuta
- Pachyseris rugosa
- Pacific Degu
- Pacific Giant Glass Frog
- Pacific Hawaiian Damselfly
- Pacific Horned Frog
- Pacific Marsupial Frog
- Pacific Pocket Mouse
- Pacific Pond Turtle
- Pacific Royal Flycatcher
- Pacific Seahorse
- Pacific Sheath-tailed Bat
- Pacific Spiny Rat
- Pagai Island Macaque
- Pagai Spiny Rat
- Pagi Island Langur
- Pahang Frog
- Pahranagat Roundtail Chub
- Pahrump Poolfish
- Painted Asian Toad
- Painted Batagur
- Painted Bunting
- Painted Clubshell
- Painted Honeyeater
- Painted Indonesian Treefrog
- Painted Robber Frog
- Painted Rocksnail
- Painted Stork
- Painted Tree Rat
- Pait
- Paka Bubble-nest Frog
- Pakenham's River Frog
- Palacanthilhiopsis vervierii
- Paladilhia pleurotoma
- Palanda Rocket Frog
- Palata
- Palau Flying Fox
- Palau Ground-dove
- Palauastrea ramosa
- Palawan Bearded Pig
- Palawan Binturong
- Palawan Blue-flycatcher
- Palawan Bubble-nest Frog
- Palawan Flycatcher
- Palawan Flying Fox
- Palawan Flying Squirrel
- Palawan Hornbill
- Palawan Horned Frog
- Palawan Peacock Pheasant
- Palawan Scops-owl
- Palawan Striped-babbler
- Palawan Tit
- Pale Dottyback
- Pale Giant Squirrel
- Pale Lilliput Pearlymussel
- Pale-backed Pigeon
- Pale-billed Sicklebill
- Pale-browed Tinamou
- Pale-capped Pigeon
- Pale-edged Stingray
- Pale-footed Bubble-nest Frog
- Pale-headed Brush-finch
- Pale-throated Pampa-finch
- Paleback Darter
- Palezone Shiner
- Palila
- Pallas's Cat
- Pallas's Fish-eagle
- Pallid Harrier
- Pallid Large-footed Myotis
- Pallid Sturgeon
- Palm Borneo Frog
- Palm Crow
- Palm Forest Treefrog
- Palm Lorikeet
- Palmer's Chipmunk
- Palos Verdes Blue Butterfly
- Paludiscala De Oro Snail
- Paludomus ajanensis
- Pampas Cat
- Pampas Deer
- Pampas Giant Glass Frog
- Pampas Meadowlark
- Pan's Box Turtle
- Panaeati Bare-backed Fruit Bat
- Panama City Crayfish
- Panamanian Golden Frog
- Panamint Alligator Lizard
- Panay Bushy-tailed Cloud Rat
- Panay Striped-babbler
- Panay Wrinkled Ground Frog
- Pandi Climbing Salamander
- Panhandle Pebblesnail
- Pantanodon sp. nov. 'Manombo'
- Panton's Robber Frog
- Papallacta Marsupial Frog
- Papallacta Treefrog
- Papalo Minute Salamander
- Papilio aristophontes
- Papilio carolinensis
- Papilio esperanza
- Papilio mangoura
- Papilio neumoegeni
- Papilio osmana
- Papillon La Pature
- Papuan Epaulette Shark
- Papyrus Gonolek
- Papyrus Yellow Warbler
- Parachondrostoma arrigonis
- Parachondrostoma toxostoma
- Parachondrostoma turiense
- Paraclavarina triangularis
- Paracyclopia naessi
- Paradiaptomus natalensis
- Paradise Parakeet
- Paraguana Mustached Bat
- Paraguana Spiny Pocket Mouse
- Paraguanan Ground Gecko
- Paraguay Horned Frog
- Parakneria tanzaniae
- Paralabidochromis victoriae
- Parambikulam Large Burrowing Spider
- Paramelita barnardi
- Paramelita flexa
- Paramo Frontino Salamander
- Paramorariopsis anae
- Parana Antwren
- Parapotamon spinescens
- Parasimplastrea sheppardi
- Parathelphusa balabac
- Parathelphusa batamensis
- Parathelphusa cabayugan
- Parathelphusa crocea
- Parathelphusa maindroni
- Parathelphusa nagasakti
- Parathelphusa ovum
- Parathelphusa pantherina
- Parathelphusa possoensis
- Parathelphusa reticulata
- Parathelphusa sarasinorum
- Paratherina cyanea
- Paratherina labiosa
- Paratherina striata
- Paratherina wolterecki
- Paratilapia polleni
- Paratilapia sp. nov. 'Vevembe'
- Paratilapia typus
- Paretroplus dambabe
- Paretroplus kieneri
- Paretroplus maculatus
- Paretroplus maromandia
- Paretroplus menarambo
- Paretroplus nourissati
- Paretroplus polyactis
- Paretroplus sp. nov. 'Dridri mena'
- Paretroplus sp. nov. 'Sofia'
- Paretroplus sp. nov. 'Ventitry'
- Paria Redstart
- Paria Wood Elf
- Parjacti Treefrog
- Parker's Andes Frog
- Parker's Dot Frog
- Parker's Snake-necked Turtle
- Parker's Tree Frog
- Parker's Wrinkled Ground Frog
- Parkhill Prairie Crayfish
- Parkinson's Petrel
- Parma Wallaby
- Parmacella tenerifensis
- Parnassius autocrator
- Parosphromenus harveyi
- Partridge Pigeon
- Partula Snail (Partula calypso)
- Partula Snail (Partula clara)
- Partula Snail (Partula dentifera)
- Partula Snail (Partula emersoni)
- Partula Snail (Partula faba)
- Partula Snail (Partula filosa)
- Partula Snail (Partula garretti)
- Partula Snail (Partula gibba)
- Partula Snail (Partula guamensis)
- Partula Snail (Partula hebe)
- Partula Snail (Partula hyalina)
- Partula Snail (Partula labrusca)
- Partula Snail (Partula langfordi)
- Partula Snail (Partula leucothoe)
- Partula Snail (Partula martensiana)
- Partula Snail (Partula mirabilis)
- Partula Snail (Partula mooreana)
- Partula Snail (Partula otaheitana)
- Partula Snail (Partula radiolata)
- Partula Snail (Partula rosea)
- Partula Snail (Partula suturalis)
- Partula Snail (Partula taeniata)
- Partula Snail (Partula thetis)
- Partula Snail (Partula tohiveana)
- Partula Snail (Partula tristis)
- Partula Snail (Partula varia)
- Partulina confusa
- Partulina dubia
- Partulina mighelsiana
- Partulina perdix
- Partulina physa
- Partulina proxima
- Partulina redfieldi
- Partulina semicarinata
- Partulina splendida
- Partulina tappaniana
- Partulina tessellata
- Partulina variabilis
- Parzefall's Stenasellid
- Pasco White-lipped Frog
- Pass Stubfoot Toad
- Pastilla dacuna
- Patagonian Cavy
- Patagonian Skate
- Patricia's Robber Frog
- Pattipola Caecilian
- Patzcuaro Frog
- Patzcuaro Stream Frog
- Paula's Long-nosed Rat
- Paulian's Madagascar Frog
- Paulson's Knobtail
- Paulson's Robber Frog
- Pavona bipartita
- Pavona cactus
- Pavona danai
- Pavona decussata
- Pavona diffluens
- Pavona minuta
- Pavona venosa
- Peacock Soft-shelled Turtle
- Peacock Softshell Turtle
- Peaked Redspot
- Peaks Of Otter Salamander
- Pearl Bubble Coral
- Pearl Riverlet Crayfish
- Pearl-bellied White-eye
- Pearly Parakeet
- Pearson's Long-clawed Mouse
- Pearson's Long-clawed Shrew
- Pearson's Tuco-tuco
- Pebas Stubfoot Toad
- Pebble Toad
- Peck's Cave Amphipod
- Pecos Amphipod
- Pecos Assiminea Snail
- Pecos Gambusia
- Pecos River Pupfish
- Pectinia africanus
- Pectinia alcicornis
- Pectinia ayleni
- Pectinia elongata
- Pectinia lactuca
- Pectinia maxima
- Pectinia paeonia
- Pectinia pygmaeus
- Pectinia teres
- Pectoral Antwren
- Pedder Galaxias
- Pedra Branca Skink
- Pegtail
- Pelado Mountains False Toad
- Pelagos Trout
- Pelasgus epiroticus
- Pelasgus laconicus
- Pelasgus marathonicus
- Pelasgus prespensis
- Pelasgus thesproticus
- Pelechuco Andes Frog
- Peleng Island Tarsier
- Peleng Leaf-nosed Bat
- Pelophryne rhopophilia
- Pelophylax grafi
- Peloponnese Slow Worm
- Pemba Flying Fox
- Pemba Green-pigeon
- Pemba Scops-owl
- Pena de Francia Rock Lizard
- Pena Verde Salamander
- Penang Stream Toad
- Pene galilaea
- Penescosta mathewsi
- Penescosta sororcula
- Penguin Freshwater Snail
- Peninsular Horseshoe Bat
- Peninsular Myotis
- Pennant's Red Colobus
- Pennington's Protea
- Pennsylvania Cave Amphipod
- Peppered Tree Frog
- Peracca's Plump Toad
- Perbrinckia cracens
- Perbrinckia enodis
- Perbrinckia fenestra
- Perbrinckia fido
- Perbrinckia gabadagei
- Perbrinckia glabra
- Perbrinckia integra
- Perbrinckia morayensis
- Perbrinckia punctata
- Perbrinckia quadratus
- Perbrinckia rosae
- Perbrinckia scitula
- Percarina demidoffi
- Perdicella helena
- Pere David's Deer
- Perija Metaltail
- Perija Thistletail
- Peripatoides indigo
- Peripatoides suteri
- Perkins' Treefrog
- Pernagera gatliffi
- Pernambuco Pygmy-owl
- Pernatty Knob-tail
- Perote Deer Mouse
- Perote Ground Squirrel
- Perret's Egg Frog
- Perret's Night Frog
- Perret's Toad
- Perret's Water Frog
- Perrier's Sifaka
- Persian Fallow Deer
- Persian Mountain Salamander
- Persian Sturgeon
- Peru Andes Frog
- Peru Stubfoot Toad
- Peru Water Frog
- Peruvian Antpitta
- Peruvian Climbing Mouse
- Peruvian Diving-petrel
- Peruvian Martin
- Peruvian Pelican
- Peruvian Piedtail
- Peruvian Pigeon
- Peruvian Plantcutter
- Peruvian Recurvebill
- Peruvian Tern
- Pesquet's Parrot
- Peters' Smooth Horned Frog
- Peterson's Free-tailed Bat
- Petropolis River Frog
- Petrotilapia chrysos
- Petrotilapia nigra
- Petter's Tuft-tailed Rat
- Pfarrit
- Pfeffer's Reed Frog
- Pfeiffer's Red Bat
- Pfrimer's Parakeet
- Phallodrilus macmasterae
- Phallostethus dunckeri
- Phantasmal Poison Frog
- Phantom Cave Crayfish
- Phantom Cave Snail
- Phasis pringlei
- Phasmodes jeeba
- Phayre's Leaf-monkey
- Pheidole acutidens
- Pheidole argentina
- Pheidole elecebra
- Pheidole inquilina
- Pheidole lanuginosa
- Pheidole microgyna
- Pheidole neokohli
- Pheidole oculata
- Pheidole parasitica
- Pheidole symbiotica
- Philautus decoris
- Philautus sp. nov. 'Amboli Forest'
- Philautus sp. nov. 'Munnar'
- Philippine Brown Deer
- Philippine Bubble-nest Frog
- Philippine Cockatoo
- Philippine Crocodile
- Philippine Dawn Bat
- Philippine Duck
- Philippine Dwarf-kingfisher
- Philippine Eagle
- Philippine Eagle-owl
- Philippine Flat-headed Frog
- Philippine Hawk-eagle
- Philippine Leafbird
- Philippine Needletail
- Philippine Pangolin
- Philippine Pond Turtle
- Philippine Tarsier
- Philippine Tube-nosed Fruit Bat
- Philippine Wart Frog
- Philippine Warty Pig
- Phillip's Small-eared Shrew
- Phillipine Porcupine
- Philochortus zolii
- Philonesia filiceti
- Philonesia pitcairnensis
- Phoenix Petrel
- Phongsaly Flying Frog
- Phou Khao Khouay Leaf-nosed Bat
- Phoxinellus alepidotus
- Phoxinellus anatolicus
- Phoxinellus dalmaticus
- Phoxinellus pseudalepidotus
- Phrantela annamurrayae
- Phrantela conica
- Phrantela kutikina
- Phrantela pupiformis
- Phrantela umbilicata
- Phricotelphusa callianira
- Phricotelphusa elegans
- Phricotelphusa gracilipes
- Phricotelphusa hockpingi
- Phricotelphusa limula
- Phricotelphusa ranongi
- Phrygiopilus acanthophallus
- Phrynopus barthlenae
- Phrynopus bracki
- Phrynopus dagmarae
- Phrynopus heimorum
- Phrynopus horstpauli
- Phrynopus juninensis
- Phrynopus kauneorum
- Phrynopus montium
- Phrynopus tautzorum
- Phyllodiaptomus wellekensae
- Pichi
- Pichincha Giant Glass Frog
- Pichincha Poison Frog
- Pichincha Rocket Frog
- Pickersgill's Reed Frog
- Pickle Springs Amphipod
- Pico Blanco Toad
- Pico Blanco Treefrog
- Pico Turquino Robber Frog
- Piebald Paa Frog
- Pied Cuckoo-dove
- Pied Cuckooshrike
- Pied Tamarin
- Piedmont Anomalous Blue
- Piedmont Blue Burrower
- Pig-footed Bandicoot
- Pig-tailed Langur
- Pigeon Mountain Salamander
- Pigmy Splayfoot Salamander
- Pijol Salamander
- Pike Asp
- Pila speciosa
- Pilalo Treefrog
- Pilar Tuco-tuco
- Pileated Flycatcher
- Pileated Gibbon
- Pillar Coral
- Pilsbrycharopa tumida
- Pilula praetumida
- Pimpled Bubble-nest Frog
- Pinaleno Monkey Grasshopper
- Pincushion Ray
- Pindu
- Pine Barrens Treefrog
- Pine Forest Stream Frog
- Pingtung Crab
- Pink Fairy Armadillo
- Pink Mucket Pearlymussel
- Pink Pigeon
- Pink Ring Mussel
- Pink Velvet Worm
- Pink-bellied Imperial-pigeon
- Pink-billed Parrotfinch
- Pink-footed Shearwater
- Pink-headed Duck
- Pink-headed Imperial-pigeon
- Pink-headed Warbler
- Pink-legged Graveteiro
- Pink-sided Treefrog
- Pink-throated Brilliant
- Pinos Robber Frog
- Pinto's Spinetail
- Pinyon Jay
- Piping Peeping Frog
- Piping Plover
- Piraja's Lancehead
- Pirre Warbler
- Pirri Range Stubfoot Toad
- Pisidium artifex
- Pitcairn Reed Warbler
- Pitt Island Longhorn Beetle
- Pitt Island Shag
- Pittier's Crab-eating Rat
- Pittoconcha concinna
- Piura Chat-tyrant
- Piura Water Frog
- Pizzini's Amphipod
- Placostylus ambagiosus
- Placostylus bivaricosus
- Placostylus bollonsi
- Placostylus eddystonensis
- Placostylus fibratus
- Placostylus hongii
- Placostylus porphyrostomus
- Plagigeyeria conilis
- Plagiolepis ampeloni
- Plagiolepis grassei
- Plagiolepis regis
- Plain Cactus Snail
- Plain Green Bubble-nest Frog
- Plain Mountain Adder
- Plain Pigeon
- Plain terapon
- Plain Wanderer
- Plain White-eye
- Plain-backed Sunbird
- Plain-flanked Rail
- Plain-pouched Hornbill
- Plain-tailed Nighthawk
- Plain-tailed Warbling-finch
- Plains Mouse
- Plains Viscacha Rat
- Plains-wanderer
- Plantanillo Gorge Salamander
- Plate-billed Mountain-toucan
- Platy Cuatro Cienegas
- Platy De Muzquiz
- Platycnemis agrioides
- Platycnemis pembipes
- Platycypha pinheyi
- Platygyra acuta
- Platygyra carnosus
- Platygyra crosslandi
- Platygyra lamellina
- Platygyra ryukyuensis
- Platygyra verweyi
- Platygyra yaeyamaensis
- Platyla foliniana
- Platyla lusitanica
- Platymantis cagayanensis
- Platymantis indeprensus
- Platymantis pseudodorsalis
- Platyops sterreri
- Platyrrhinus ismaeli
- Platyrrhinus matapalensis
- Platytaeniodus degeni
- Pleasing Poison Frog
- Plebejus hesperica
- Plebejus trappi
- Plectranthias chungchowensis
- Plectrohyla calthula
- Plectrohyla calvicollina
- Plectrohyla celata
- Plectrohyla chrysopleura
- Plectrohyla cyclada
- Plectrohyla ephemera
- Plectrohyla exquisita
- Plectrohyla psarosema
- Plectrohyla psiloderma
- Plegma caelatura
- Plesiastrea devantieri
- Pleske's Grasshopper-warbler
- Pleurocera postelli
- Pleuroxia hinsbyi
- Plicate Rocksnail
- Plumbeous Antvireo
- Plumbeous Forest-falcon
- Plumbeous Hawk
- Plunket's Dogfish
- Plush-coated Ringtail
- Plymouth Red-bellied Turtle
- Po'ouli
- Podolian Mole Rat
- Poecilmitis adonis
- Poecilmitis azurius
- Poecilmitis balli
- Poecilmitis daphne
- Poecilmitis endymion
- Poecilmitis henningi
- Poecilmitis hyperion
- Poecilmitis irene
- Poecilmitis kaplani
- Poecilmitis lyncurium
- Poecilmitis lyndseyae
- Poecilmitis orientalis
- Poecilmitis penningtoni
- Poecilmitis pyramus
- Poecilmitis rileyi
- Poecilmitis stepheni
- Poecilmitis swanepoeli
- Poecilmitis trimeni
- Poecilmitis wykehami
- Poeppig's Woolly Monkey
- Poey's Grouper
- Pogonomyrmex anergismus
- Pogonomyrmex colei
- Pohle's Fruit Bat
- Pohnpei Flying Fox
- Point Arena Mountain Beaver
- Polar Bear
- Polillo Wrinkled Ground Frog
- Polkadot Cod
- Polkadot Poison Frog
- Pollan
- Pollen's Vanga
- Polyergus lucidus
- Polyergus nigerrimus
- Polynesian Ground Dove
- Polynesian Imperial Pigeon
- Polynesian Megapode
- Polyommatus dama
- Polyphyllia novaehiberniae
- Pomace Fly (Drosophila aglaia)
- Pomace Fly (Drosophila differens)
- Pomace Fly (Drosophila hemipeza)
- Pomace Fly (Drosophila heteroneura)
- Pomace Fly (Drosophila montgomeryi)
- Pomace Fly (Drosophila musaphila)
- Pomace Fly (Drosophila neoclavisetae)
- Pomace Fly (Drosophila obatai)
- Pomace Fly (Drosophila ochrobasis)
- Pomace Fly (Drosophila substenoptera)
- Pomace Fly (Drosophila tarphytrichia)
- Pomugu Wrinkled Ground Frog
- Ponape Greater White-eye
- Ponape Mountain Starling
- Poncelet's Giant Rat
- Pond Bat
- Ponderous Siltsnail
- Pondicherry Shark
- Pondoland Cannibal Snail
- Ponmudi Bubble-nest Frog
- Ponmudi Hill Bubble-nest Frog
- Ponmudi Hills Bubble-nest Frog
- Pontian Shemaya
- Poole's Robber Frog
- Poor Knights Weta
- Pop-eyed Spikethumb Frog
- Popta's Buntingi
- Porbeagle
- Porcupine Ray
- Porites annae
- Porites aranetai
- Porites attenuata
- Porites branneri
- Porites cocosensis
- Porites cumulatus
- Porites cylindrica
- Porites deformis
- Porites densa
- Porites desilveri
- Porites echinulata
- Porites eridani
- Porites harrisoni
- Porites horizontalata
- Porites lobata
- Porites murrayensis
- Porites napopora
- Porites negrosensis
- Porites nigrescens
- Porites okinawensis
- Porites ornata
- Porites pukoensis
- Porites rugosa
- Porites sillimaniana
- Porites somaliensis
- Porites stephensoni
- Porites sverdrupi
- Porites tuberculosa
- Poritipora paliformis
- Poropuntius tawarensis
- Port Conception Jerusalem Cricket
- Porteous's Tuco-tuco
- Porthole Treefrog
- Portland Cave Robber Frog
- Portland Parish Robber Frog
- Portuguese Dogfish
- Poso Bungu
- Potamocarcinus hartmanni
- Potamocarcinus roatensis
- Potamon bileki
- Potamon fluviatile
- Potamon ibericum
- Potamon potamios
- Potamon rhodium
- Potamon setiger
- Potamonautes choloensis
- Potamonautes gerdalensis
- Potamonautes gonocristatus
- Potamonautes idjiwiensis
- Potamonautes ignestii
- Potamonautes infravallatus
- Potamonautes lividus
- Potamonautes montivagus
- Potamonautes mutandensis
- Potamonautes pilosus
- Potamonautes platycentron
- Potamonautes raybouldi
- Potamonautes reidi
- Potamonautes triangulus
- Potamonautes unisulcatus
- Potamonautes xiphoidus
- Potosi Centipede Snake
- Potosi Pupfish
- Powan
- Powder Blue Damsel
- Prairie Sphinx Moth
- Precarious Black Millipede
- Predatory Bush Cricket
- Prehensile-tailed Hutia
- Prespa Spirlin
- Preuss' Red Colobus Monkey
- Preuss's Monkey
- Pribilof Island Shrew
- Prickly Pear Island Snail
- Prickly Shark
- Prigogine's Greenbul
- Primeval Splayfoot Salamander
- Prince Ruspoli's Turaco
- Princess Parrot
- Principe Speirops
- Pristimantis Rain Frog (Pristimantis acerus)
- Pristine Crayfish
- Pritchard's Snake-necked Turtle
- Pro-Mata Oval Frog
- Proasellus parvulus
- Proasellus slovenicus
- Proboscis Monkey
- Probreviceps durirostris
- Probreviceps rungwensis
- Procambarus latipleurum
- Procambarus plumimanus
- Procambarus rathbunae
- Procambarus reimeri
- Procarid Shrimp
- Prognathochromis sp. nov. 'long snout'
- Pronged Clubtail
- Pronghorn
- Proserpine Rock Wallaby
- Proserpine Shiner
- Prostherapis dunni
- Protemblemaria punctata
- Protocobitis typhlops
- Protomelas virgatus
- Protomognathus americanus
- Prototrachia sedula
- Providence Petrel
- Przewalski's Gazelle
- Przewalski's Horse
- Psacadonotus insulanus
- Psammocora contigua
- Psammocora digitata
- Psammocora obtusangula
- Psammocora stellata
- Psammocora vaughani
- Pseudagrion arabicum
- Pseudagrion bicoerulans
- Pseudagrion guichardi
- Pseudagrion inopinatum
- Pseudagrion kaffinum
- Pseudagrion newtoni
- Pseudagrion vumbaense
- Pseudamnicola anteisensis
- Pseudamnicola klemmi
- Pseudoatta argentina
- Pseudocandona cavicola
- Pseudocandona pretneri
- Pseudocandona trigonelia
- Pseudochazara euxina
- Pseudochondrostoma duriense
- Pseudochondrostoma willkommii
- Pseudoeurycea cephalica
- Pseudomoraria triglavensis
- Pseudomulleria dalyi
- Pseudomyrmex leptosus
- Pseudophoxinus anatolicus
- Pseudophoxinus battalgili
- Pseudophoxinus crassus
- Pseudophoxinus drusensis
- Pseudophoxinus egridiri
- Pseudophoxinus fahirae
- Pseudophoxinus kervillei
- Pseudophoxinus syriacus
- Pseudophoxinus zeregi
- Pseudotropheus ater
- Pseudotropheus cyaneus
- Pseudotropheus demasoni
- Pseudotropheus elongatus
- Pseudotropheus flavus
- Pseudotropheus galanos
- Pseudotropheus longior
- Pseudotropheus modestus
- Pseudotropheus purpuratus
- Pseudotropheus saulosi
- Pseudotropheus tursiops
- Psychrophrynella adenopleura
- Psychrophrynella boettgeri
- Psychrophrynella iatamasi
- Psychrophrynella pinguis
- Ptychalaea dedecora
- Ptychochromis inornatus
- Ptychochromis sp. nov. 'Garaka'
- Ptychochromis sp. nov. 'Green Garaka'
- Ptychochromis sp. nov. 'Joba mena'
- Ptychochromoides betsileanus
- Ptychochromoides katria
- Ptychochromoides vondrozo
- Ptychodon schuppi
- Ptychohyla dendrophasma
- Ptychophallus tristani
- Ptyochromis sp. nov. 'rainbow sheller'
- Ptyochromis sp. nov. 'Rusinga oral sheller'
- Pudu
- Puebla Deer Mouse
- Puebla Frog
- Puebla Treefrog
- Puerto Cabello Robber Frog
- Puerto Rican Boa
- Puerto Rican Broad-winged Hawk
- Puerto Rican Crested Toad
- Puerto Rican Nightjar
- Puerto Rican Parrot
- Puerto Rican Robber Frog
- Puerto Rican Sharp-shinned Hawk
- Puerto Rican Wetland Frog
- Puff-backed Bulbul
- Puku
- Pulitzer's Longbill
- Pulmonate Limpet
- Pulo Tioman Stream Toad
- Puna Flamingo
- Puna Mouse
- Pundamilia igneopinis
- Pundamilia macrocephala
- Pundamilia nyerere
- Pundt's Tuco-tuco
- Pungu
- Puntius hemictenus
- Puntius herrei
- Puntius manguaoensis
- Puntius speleops
- Pupamon phrae
- Purcell's Hunter Slug
- Puritan Tiger Beetle
- Purple Bankclimber
- Purple Bean
- Purple Dollarbird
- Purple Eagle Ray
- Purple Ghats Frog
- Purple Marsh Crab
- Purple Skimmer
- Purple Threadtail
- Purple-backed Sunbeam
- Purple-faced Langur
- Purple-naped Lory
- Purple-sided Leaf Frog
- Purple-winged Ground Dove
- Purplish-mantled Tanager
- Putnam County Cave Crayfish
- Putumayo Robber Frog
- Puxiong Lazy Toad
- Puyo Giant Glass Frog
- Pycroft's Petrel
- Pygmy Alligator Lizard
- Pygmy Chimpanzee
- Pygmy Copperhead
- Pygmy Devilray
- Pygmy Hippopotamus
- Pygmy Hog
- Pygmy Hog Sucking Louse
- Pygmy Madtom
- Pygmy Mouse Lemur
- Pygmy Pebblesnail
- Pygmy Rabbit
- Pygmy Raccoon
- Pygmy Sculpin
- Pygmy Siltsnail
- Pygmy Slow Loris
- Pygmy Spotted Skunk
- Pygmy Three-toed Sloth
- Pygmy White-tailed Rat
- Pygmy Wrinkled Ground Frog
- Pyrenaearia daanidentata
- Pyrenaearia molae
- Pyrenean Brook Salamander
- Pyrenean Desman
- Pyrenean Frog
- Pyrenean Ibex
- Pyrenean Rock Lizard
- Pyxichromis orthostoma
- Qinghai Lake Toad
- Quadrate Pebblesnail
- Quarry Worm Salamander
- Quebrada Valverde Salamander
- Quechuan Hocicudo
- Queen Alexandra's Birdwing Butterfly
- Queen Malachite
- Queen Triggerfish
- Queensland Rat-kangaroo
- Queretaran Desert Lizard
- Quick Step Robber Frog
- Quietschbukers
- Quindio Glass Frog
- Quino Checkerspot Butterfly
- Quokka
- Rabbit Bandicoot
- Rabbitfish
- Rabor's Wrinkled Ground Frog
- Raddaus mertensi
- Radioconus goeldi
- Radioconus riochcoensis
- Radiodiscus amdenus
- Radiodiscus compactus
- Raetzer's Ringlet
- Rahm's Brush-furred Rat
- Railroad Valley Springfish
- Rainbow Goodeid
- Rainbow Parrotfish
- Rainforest Running Frog
- Rainfrog
- Rajah Spiny Rat
- Ramajana Bambootail
- Rameshwaram Ornamental
- Ramsay's Python
- Ramsey Canyon Leopard Frog
- Rancho Grande Harlequin Frog
- Randrianasoli's Sportive Lemur
- Ranjini's Field Rat
- Ranongga White-eye
- Rapa Fruit-dove
- Rapid River Freshwater Snail
- Rarotonga Monarch
- Rarotonga Starling
- Rasbora baliensis
- Rasbora tawarensis
- Rasbora wilpita
- Raso Lark
- Rattling Frog
- Rattus satarae
- Ravelobe Mouse Lemur
- Razor-billed Curassow
- Razorback Sucker
- Reclusive Ringtail
- Recurve-billed Bushbird
- Red And Yellow Mountain Frog
- Red Bird-of-paradise
- Red Chaser
- Red Deer
- Red Fruit Bat
- Red Goral
- Red Goshawk
- Red Grouper
- Red Hills Salamander
- Red Jungle-skimmer
- Red Kite
- Red Lark
- Red Myotis
- Red Panda
- Red Peeping Frog
- Red Porgy
- Red Rain Frog
- Red Rainbowfish
- Red Ruffed Lemur
- Red Serow
- Red Siskin
- Red Slate Ornamental
- Red Slender Loris
- Red Spotted Argentina Frog
- Red Stingray
- Red Tree Vole
- Red Wolf
- Red-and-black Thrush
- Red-and-blue Lory
- Red-and-gray Mouse Lemur
- Red-backed Squirrel Monkey
- Red-backed Thrush
- Red-bellied Earth Runner
- Red-bellied Grackle
- Red-bellied Lemur
- Red-bellied Myzomela
- Red-bellied Racer
- Red-billed Curassow
- Red-billed Hanging-parrot
- Red-black Crayfish
- Red-breasted Goose
- Red-breasted Plover
- Red-browed Parrot
- Red-capped Parrot
- Red-cheeked Salamander
- Red-cockaded Woodpecker
- Red-collared Mountain-babbler
- Red-collared Woodpecker
- Red-crowned Barbet
- Red-crowned Parrot
- Red-crowned Toadlet
- Red-eared Nose-spotted Monkey
- Red-eared Parrotfinch
- Red-faced Barbet
- Red-faced Malkoha
- Red-faced Parrot
- Red-finned Blue-eye
- Red-footed Climbing Salamander
- Red-footed Falcon
- Red-fronted Antpecker
- Red-fronted Brown Lemur
- Red-fronted Gazelle
- Red-fronted Macaw
- Red-fronted Parakeet
- Red-fronted Parrotlet
- Red-handed Howler Monkey
- Red-handed Howling Monkey
- Red-headed Amazon River Turtle
- Red-headed Flying Frog
- Red-headed Vulture
- Red-headed Water Frog
- Red-headed Woodpecker
- Red-knobbed Imperial-pigeon
- Red-legged Cormorant
- Red-legged Horn Frog
- Red-legged Kittiwake
- Red-legged Robber Frog
- Red-legged Salamander
- Red-legged Threadtail
- Red-lored Whistler
- Red-masked Parakeet
- Red-naped Fruit-dove
- Red-naped Trogon
- Red-necked Parrot
- Red-necked Pond Turtle
- Red-nosed Tree Rat
- Red-shouldered Spinetail
- Red-shouldered Vanga
- Red-spectacled Parrot
- Red-spotted Chirping Frog
- Red-spotted Lazy Toad
- Red-spotted Toad
- Red-tailed Knobby Newt
- Red-tailed Newtonia
- Red-tailed Parrot
- Red-tailed Phascogale
- Red-tailed Sharkminnow
- Red-tailed Sportive Lemur
- Red-throated Barbet
- Red-throated Lorikeet
- Red-throated Sunbird
- Redback Bright-eyed Frog
- Redbelly Egg Frog
- Redclaw Crayfish
- Reddell's Cave Amphipod
- Reddish Scops-owl
- Redfish
- Rednose Robber Frog
- Rednose Stubfoot Toad
- Reed Frog
- Reed Parrotbill
- Reeves's Pheasant
- Regent Honeyeater
- Reiche's Squeaker
- Reig's Aepeomys
- Reig's Opossum
- Reig's Tuco-tuco
- Reinanke
- Relict Dace
- Relict Darter
- Relict Gull
- Relict Himalayan Dragonfly
- Relict Leopard Frog
- Remote Conehead Katydid
- Renea bourguignatiana
- Renea gormonti
- Renea moutoni
- Renea paillona
- Renea singularis
- Rennell Flying Fox
- Resowska Shemaja
- Resplendent Pygmy Angelfish
- Resplendent Quetzal
- Restinga Antwren
- Restinga Tyrannulet
- Reticulate Bubble-nest Frog
- Reticulate Collared Lizard
- Reticulate Leaf Frog
- Reticulated Flatwoods Salamander
- Reticulated Toadfish
- Retinella stabilei
- Reunion Cuckoo-shrike
- Reunion Harrier
- Reventazon Shadowdamsel
- Reymondia tanganyicensis
- Rhabdalestes leleupi
- Rhacophorus zhaojuensis
- Rhadinaea fulvivittis
- Rhaebo caeruleostictus
- Rhagada gibbensis
- Rhagada harti
- Rhamdia zongolicensis
- Rhantus alutaceus
- Rheocles alaotrensis
- Rheocles derhami
- Rheocles vatosoa
- Rheocles wrightae
- Rhinella amabilis
- Rhinella chavin
- Rhinella manu
- Rhinella sclerocephala
- Rhinobatos jimbaranensis
- Rhinoceros Hornbill
- Rhinoceros Iguana
- Rhinocypha hageni
- Rhinocypha latimacula
- Rhinocypha ogasawarensis
- Rhinocypha uenoi
- Rhipidolestes okinawanus
- Rhithrodytes agnus
- Rhode's Robber Frog
- Rhombophryne coronata
- Rhombophryne guentherpetersi
- Rhoptromyrmex mayri
- Rhoptromyrmex schmitzi
- Rhynchochydorus australiensis
- Rhysoconcha atanuiensis
- Rhysoconcha variumbilicata
- Rhytida clarki
- Rhytida oconnori
- Ribbon-tailed Astrapia
- Ribeirao Button Frog
- Rich Mountain Salamander
- Richard's Moss Salamander
- Richmond Range Mountain Frog
- Richmond's Robber Frog
- Richmond's Squirrel
- Rickett's Big-footed Bat
- Ricordi's Robber Frog
- Ridge Marsupial Frog
- Ridgway's Hawk
- Ridley's Myotis
- Riedling
- Riggenbach's Reed Frog
- Rilett's Climbing Salamander
- Rim Rock Crowned Snake
- Rimatara Reed-warbler
- Rimitara Lorikeet
- Ring-necked Francolin
- Ring-tailed Lemur
- Ring-tailed Pigeon
- Ringed Boghaunter
- Ringed Hornsnail
- Ringed River Frog
- Ringed Sawback
- Ringstraked Guitarfish
- Rio Branco Antbird
- Rio Calima Marsupial Frog
- Rio Calles Robber Frog
- Rio Carauta Stubfoot Toad
- Rio Chingual Valley Treefrog
- Rio Chipillico Frog
- Rio De Janeiro Antbird
- Rio De Janeiro Antwren
- Rio De Janeiro Arboreal Rat
- Rio Faisanes Stubfoot Toad
- Rio Grande Darter
- Rio Grande Monkeyface
- Rio Grande Silvery Minnow
- Rio Luisito Treefrog
- Rio Magdalena River Turtle
- Rio Mutum Frog
- Rio Pescado Stubfoot Toad
- Rio Pitzara Robber Frog
- Rio Quiri Salamander
- Rio Sananja Spikethumb Frog
- Rio Skate
- Rio Suno Robber Frog
- Rio Viejo Toad
- Riobamba Marsupial Frog
- Riparian Brush Rabbit
- Riparian Woodrat
- Ris's Sanddragon
- Risiocnemis seidenschwarzi
- River Pipefish
- River Terrapin
- Rivera Redbelly Toad
- Riverine Rabbit
- Rivero's Cochran Frog
- Rivulet Tiger (Dragonfly)
- Roach's Mouse-tailed Dormouse
- Roanoke Bass
- Roanoke Logperch
- Roatan Island Agouti
- Roatan Spiny-tailed Iguana
- Robber Baron Cave Meshweaver
- Roberto's Spiny Rat
- Roberts' False Brook Salamander
- Roberts' Treefrog
- Robust Cottontail
- Robust Golden Mole
- Robust Skink
- Rockefeller's Sunbird
- Rocky Mountain Capshell
- Rocky River Frog
- Rodeck's Whiptail
- Rodrigues Day Gecko
- Rodrigues Fody
- Rodrigues Fruit Bat
- Rodrigues Warbler
- Rodriguezus trujillensis
- Roig's Tuco-tuco
- Rolling Pebblesnail
- Romanian Hamster
- Romanian Loach
- Romanogobio benacensis
- Romer's Treefrog
- Ronald's Robber Frog
- Rondo Bushbaby
- Rondonia Bushbird
- Rondonia Marmoset
- Roque Chico de Salmor Giant Lizard
- Roraima Bush Toad
- Roraima Mouse
- Rosalia Longicorn
- Rose's Mountain Toad
- Rose-bellied Bunting
- Roseate Tern
- Rossomyrmex minuchae
- Rossomyrmex proformicarum
- Roswell Springsnail
- Rosy Ground Frog
- Rota Bridled White-eye
- Rothschild's Birdwing
- Rothschild's Starling
- Rothschild's Swift
- Roti Island Snake-necked Turtle
- Rotuma Myzomela
- Rouget's Rail
- Rough Cactus Coral
- Rough Horned Frog
- Rough Hornsnail
- Rough Pigtoe
- Rough Rabbitsfoot
- Rough Rockshell
- Rough Sculpin
- Rough-haired Golden Mole
- Rough-skinned Bubble-nest Frog
- Roughneck Alligator Lizard
- Roughnose Wedgefish
- Roughskin Skate
- Round Ebonyshell
- Round Island Burrowing Boa
- Round Island Casarea Boa
- Round Island Day Gecko
- Round Island Skink
- Round Rocksnail
- Round-rib Elimia
- Roviana Rail
- Roving Coralgrouper
- Rovuma Topminnow
- Rowley's Palm Pit Viper
- Royal Cinclodes
- Royal False Brook Salamander
- Royal Marstonia Snail
- Royal Parrotfinch
- Royal Penguin
- Royal Sunangel
- Royal Yarrow's Spiny Lizard
- Royle's Mountain Vole
- Ruaha Lampeye
- Ruatara koarana
- Ruatara oparica
- Rubberlip Hap
- Rubeho Akalat
- Ruby-legged Black Millipede
- Rudd's Lark
- Rueck's Blue-flycatcher
- Rueppel's Big-eyed Treefrog
- Rueppell's Vulture
- Rufous Coucal
- Rufous Fishing-owl
- Rufous Flycatcher
- Rufous Hornbill
- Rufous Scrub-bird
- Rufous-backed Bunting
- Rufous-bellied Saltator
- Rufous-breasted Laughingthrush
- Rufous-breasted Warbling-finch
- Rufous-browed Hemispingus
- Rufous-cheeked Hummingbird
- Rufous-chested Flycatcher
- Rufous-collared Kingfisher
- Rufous-crowned Antpitta
- Rufous-crowned Babbler
- Rufous-eared Brush-finch
- Rufous-faced Crake
- Rufous-fronted Antthrush
- Rufous-fronted Laughingthrush
- Rufous-fronted Parakeet
- Rufous-headed Chachalaca
- Rufous-headed Ground-roller
- Rufous-headed Hornbill
- Rufous-headed Robin
- Rufous-lored Kingfisher
- Rufous-necked Foliage-gleaner
- Rufous-necked Hornbill
- Rufous-rumped Grassbird
- Rufous-rumped Seedeater
- Rufous-sided Pygmy-tyrant
- Rufous-tailed Antbird
- Rufous-tailed Hawk
- Rufous-tailed Shama
- Rufous-throated Dipper
- Rufous-throated Flycatcher
- Rufous-throated White-eye
- Rufous-throated Wren-babbler
- Rufous-vented Prinia
- Rufous-winged Illadopsis
- Rufous-winged Sunbird
- Rugegewald River Frog
- Rugged Hornsnail
- Ruiz's Marsupial Frog
- Ruiz's Robber Frog
- Ruiz's Rocket Frog
- Rumpi Mouse Shrew
- Rupirana cardosoi
- Rus Bubble-nest Frog
- Russet Hawk-owl
- Russet-bellied Spinetail
- Russet-crowned Quail-dove
- Russet-mantled Softtail
- Russet-winged Spadebill
- Russian Desman
- Russian Sturgeon
- Rusty Blackbird
- Rusty Grave Digger
- Rusty-barred Owl
- Rusty-bellied Shortwing
- Rusty-faced Babbler
- Rusty-faced Parrot
- Rusty-flanked Crake
- Rusty-gray Lesser Bamboo Lemur
- Rusty-headed Spinetail
- Rusty-necked Piculet
- Rusty-spotted Cat
- Rusty-throated Parrotbill
- Rusty-throated Wren-babbler
- Rusty-winged Starling
- Rutenberg's Reed Frog
- Ruth's Robber Frog
- Ruthvens Kingsnake
- Rutilus meidingeri
- Rutilus panosi
- Rutilus prespensis
- Rutilus rubilio
- Rutilus ylikiensis
- Ruwenzori Horseshoe Bat
- Ruwenzori Shrew
- Rwanda River Frog
- Rwenzori Otter Shrew
- Rye Cove Cave Isopod
- Ryukyu Black-breasted Leaf Turtle
- Ryukyu Brown Frog
- Ryukyu Flying Fox
- Ryukyu Rabbit
- Ryukyu Robin
- Ryukyu Shrew
- Ryukyu Spiny Rat
- Ryukyu Tip-nosed Frog
- Ryukyu Tube-nosed Bat
- Ryukyu Woodcock
- Ryukyus Islands Tree Rat
- Saavedra Andes Frog
- Sabah Rice Frog
- Sabahphrynus anotis
- Sabino Dancer
- Saccogaster melanomycter
- Sachs's Stream Crab
- Sacramento Anthicid Beetle
- Sacramento Splittail
- Sacred Swamp Wrinkled Frog
- Saddleback
- Saddled Galaxias
- Sadleriana pannonica
- Sado Mole
- Saffron Siskin
- Saffron Toucanet
- Saffron-breasted Redstart
- Saffron-cowled Blackbird
- Saffron-headed Parrot
- Sagalla Caecilian
- Sahamalaza Sportive Lemur
- Saiga Antelope
- Saimaa Ringed Seal
- Saint Andrew's Cross Toadlet
- Saint Helena Earwig
- Saint Lucia Mullet
- Sakalava Rail
- Saker Falcon
- Sakhalin Sturgeon
- Sakhalin Vole
- Salangathelphusa anophrys
- Salaria economidisi
- Salgir Gudgeon
- Salim Ali's Fruit Bat
- Salina Mucket
- Salinas Monjita
- Saline Burrowing Crayfish
- Salmo ohridanus
- Salmo peristericus
- Salmon River Freshwater Snail
- Salmon-crested Cockatoo
- Salt Creek Tiger Beetle
- Salt Marsh Harvest Mouse
- Salta Marsupial Frog
- Salta Toad
- Salta Water Frog
- Saltmarsh Sharp-tailed Sparrow
- Saltwater Crocodile
- Salvadori's Antwren
- Salvadori's Fig-parrot
- Salvadori's Nightjar
- Salvadori's Pheasant
- Salvadori's Serin
- Salvadori's Teal
- Salvelinus colii
- Salvelinus confluentus
- Salvelinus evasus
- Salvelinus fimbriatus
- Salvelinus gracillimus
- Salvelinus grayi
- Salvelinus japonicus
- Salvelinus killinensis
- Salvelinus lonsdalii
- Salvelinus mallochi
- Salvelinus maxillaris
- Salvelinus obtusus
- Salvelinus perisii
- Salvelinus sp. nov. 'Fjellfrosvatn'
- Salvelinus struanensis
- Salvelinus willoughbii
- Salvelinus youngeri
- Salvin's Albatross
- Salvin's Salamander
- Sambar Deer
- Sambirano Mouse Lemur
- Samoan Flycatcher
- Samoan Flying Fox
- Samoan Moorhen
- Samoan Tree Snail (Samoana abbreviata)
- Samoan Triller
- Samoan White-eye
- Samwell Cave Cricket
- San Andres Vireo
- San Bernardino Merriam's Kangaroo Rat
- San Bruno Elfin Butterfly
- San Clemente Loggerhead Shrike
- San Cristobal Mockingbird
- San Cristobal Shrew
- San Diego Fairy Shrimp
- San Esteban Deer Mouse
- San Esteban Island Chuckwalla
- San Francisco Garter Snake
- San Gabriel Springs Salamander
- San Isidro Stubfoot Toad
- San Joaquin Dune Beetle
- San Joaquin Kit Fox
- San Jose Brush Rabbit
- San Jose Island Kangaroo Rat
- San Lorenzo Deer Mouse
- San Lucan Leaf-toed Gecko
- San Lucas Marsupial Frog
- San Marcos Gambusia
- San Marcos Salamander
- San Martin False Brook Salamander
- San Martin Fringe-limbed Treefrog
- San Martin Minute Salamander
- San Martin Redbelly Toad
- San Pedro Martir Side-blotched Lizard
- San Pedro Martir Whiptail
- San Quintin Kangaroo Rat
- Sanborn's Flying Fox
- Sanborn's Grass Mouse
- Sanborn's Water Frog
- Sand Cat
- Sand Sturgeon
- Sandfelchen
- Sandhill Crane
- Sandhills Crayfish
- Sandstone Night Lizard
- Sandstone Pseudantechinus
- Sandy Mole Rat
- Sanford's Brown Lemur
- Sanford's Sea-eagle
- Sanford's White-eye
- Sangihe Hanging-parrot
- Sangihe Island Tarsier
- Sangihe Shrike-thrush
- Sangihe White-eye
- Sanja Pampa Andes Frog
- Sanje Crested Mangabey
- Santa Ana Sucker
- Santa Barbara Bromeliad Salamander
- Santa Barbara Moss Salamander
- Santa Catalina Island Rattlesnake
- Santa Catalina Island Whiptail
- Santa Catarina Leaf Frog
- Santa Catarina Sabrefin
- Santa Catarina's Guinea Pig
- Santa Cruz Dwarf Frog
- Santa Cruz Ground Dove
- Santa Cruz Long-toed Salamander
- Santa Cruz Mouse
- Santa Cruz Shrikebill
- Santa Fe Cave Crayfish
- Santa Fe White-lipped Frog
- Santa Marta Antpitta
- Santa Marta Bush-tyrant
- Santa Marta Parakeet
- Santa Marta Poison Arrow Frog
- Santa Marta Sabrewing
- Santa Marta Warbler
- Santa Marta Wren
- Santa Monica Mountains Grasshopper
- Santa Monica Shieldback Katydid
- Santa Rita Beaked Toad
- Santa Rita Rocket Frog
- Santander Poison Frog
- Santiago Galapagos Mouse
- Santiago Rocket Frog
- Santo Starling
- Sao Francisco Sparrow
- Sao Miguel Bullfinch
- Sao Paulo Tyrannulet
- Sao Tome Collared Fruit Bat
- Sao Tome Fiscal Shrike
- Sao Tome Free-tailed Bat
- Sao Tome Giant Sunbird
- Sao Tome Grosbeak
- Sao Tome Oriole
- Sao Tome Reed Frog
- Sao Tome Scops-owl
- Sao Tome Short-tail
- Sao Tome Shrew
- Sao Tome Thrush
- Sao Tome White-eye
- Saola
- Sapphire-bellied Hummingbird
- Sarasin Bubble-nest Frog
- Sarasin's Goby
- Sarasins Minnow
- Sarawak Grainy Frog
- Sardinata Treefrog
- Sardinian Brook Salamander
- Sardinian Long-eared Bat
- Sardinilla Cuatro Cienegas
- Sardinita Bocagrande
- Sardinita De Rio Verde
- Sardinita De Santa Maria
- Sardinita De Tepelmene
- Sardinita Del Pilon
- Sardinita Quijarrona
- Sarrabus Cave Salamander
- Sarus Crane
- Satsukimasu Salmon
- Satyr Tragopan
- Saunders's Gull
- Sauter's Brown Frog
- Savage River Freshwater Snail
- Savage's Brook Frog
- Savage's Cochran Frog
- Savigny's Agama
- Savigny's Fringe-fingered Lizard
- Saw-billed Hermit
- Sawback Angelshark
- Sawtail Grouper
- Say's Spiketail
- Sayamia maehongsonensis
- Sayamia melanodactylus
- Scaled Ground-cuckoo
- Scaleshell Mussel
- Scallop-breasted Antpitta
- Scalloped Antbird
- Scaly Ground-roller
- Scaly-breasted Bulbul
- Scaly-sided Merganser
- Scaly-tailed Possum
- Scanty Frog
- Scardinius acarnanicus
- Scardinius dergle
- Scardinius graecus
- Scardinius racovitzai
- Scardinius scardafa
- Scarlet Bluet
- Scarlet Harlequin Toad
- Scarlet-banded Barbet
- Scarlet-breasted Dacnis
- Scarlet-breasted Flowerpecker
- Scarlet-breasted Robin
- Scarlet-chested Parakeet
- Scarlet-collared Flowerpecker
- Scarlet-rumped Trogon
- Schauinsland's Bush Cricket
- Schaus Swallowtail
- Schayer's Grasshopper
- Schelkovnikov's Pine Vole
- Schelly
- Schilf's Madagascar Frog
- Schiotz's Reed Frog
- Schistura jarutanini
- Schistura oedipus
- Schistura sijuensis
- Schizothorax lepidothorax
- Schlegel's Asity
- Schmacker's Bubble-nest Frog
- Schmarda Bubble-nest Frog
- Schmidly's Deer Mouse
- Schmidt's Lazy Toad
- Schmidt's Marsupial Frog
- Schmidt's Minute Salamander
- Schmidt's Mountain Brook Frog
- Schmidt's Robber Frog
- Schmidt's Spinythumb Frog
- Schmidt's Stubfoot Toad
- Schneider's Pitta
- Schneider's Surprise
- Schouteden's Swift
- Schreiber's Fringe-fingered Lizard
- Schubert's Stefania Treefrog
- Schultze's Stream Frog
- Schwartz's Myotis
- Schwartz's Robber Frog
- Schwebrenke
- Scimitar-horned Oryx
- Scimitar-winged Piha
- Scinax alcatraz
- Scinax faivovichi
- Scinax oreites
- Scinax peixotoi
- Scinax trapicheiroi
- Scioto Madtom
- Scissor-tailed Hummingbird
- Sclater's Lark
- Sclater's Monal Pheasant
- Sclater's Monkey
- Sclater's Shrew
- Sclater's Tiny Mouse Shrew
- Scortecci's Toad
- Scott's Mouse-eared Bat
- Scottbar Salamander
- Scottsdale Freshwater Snail
- Scree Skink
- Sculpin Snail
- Sculptiferussacia clausiliaeformis
- Scutiger chintingensis
- Scutiger gongshanensis
- Scutiger liupanensis
- Scutiger maculatus
- Scutiger muliensis
- Scutiger nepalensis
- Scutiger ningshanensis
- Scutiger pingwuensis
- Scutiger ruginosus
- Scutiger tuberculatus
- Sea Otter
- Seabass
- Sechura Desert Fox
- Seed Shrimp
- Seep Frog
- Seepage Salamander
- Sehuencas Water Frog
- Sei Whale
- Seladang
- Selva Cacique
- Semi-collared Flycatcher
- Semiaquatic Treefrog
- Semicollared Hawk
- Seminole Siltsnail
- Semirechensk Salamander
- Semotrachia euzyga
- Semper's Warbler
- Sentani Rainbowfish
- Seoul Pond Frog
- Sepia Stingray
- Seram Bandicoot
- Seram Flying Fox
- Seram Island Mountain Rat
- Seram Thrush
- Serasan Borneo Frog
- Serendib Scops-owl
- Seri's Tree Kangaroo
- Seriatopora aculeata
- Seriatopora dendritica
- Seriatopora stellata
- Serpent Island Centipede
- Serpent Island Gecko
- Serra Do Mar Tyrannulet
- Serrastruma inquilina
- Setaro's Dwarf Chameleon
- Seven-colored Tanager
- Seychelles Crow
- Seychelles Fineliner
- Seychelles Fody
- Seychelles Frog
- Seychelles House Snake
- Seychelles Kestrel
- Seychelles Lesser Vasa Parrot
- Seychelles Magpie-robin
- Seychelles Palm Frog
- Seychelles Paradise Flycatcher
- Seychelles Scops Owl
- Seychelles Sheath-tailed Bat
- Seychelles Swiftlet
- Seychelles Turtle Dove
- Seychelles Warbler
- Seychelles White-eye
- Seychelles Wolf Snake
- Shadowy Web-footed Salamander
- Shangcheng Stout Salamander
- Shanghai Soft-shell Turtle
- Shapo
- Shark Bay Mouse
- Sharman's Rock Wallaby
- Sharp Bubble-nest Frog
- Sharp Snouted Day Frog
- Sharp-ribbed Salamander
- Sharp-tailed Grass Tyrant
- Sharpe's Longclaw
- Sharpfin Houndshark
- Sharpnose Guitarfish
- Sharpnose Stingray
- Sharpsnout Reed Frog
- Sharpsnout Stingray
- Sharptooth Lemon Shark
- Shasta Crayfish
- Shasta Salamander
- Sheldonia puzeyi
- Shelley's Crimson-wing
- Shelley's Eagle-owl
- Shenandoah Mountain Salamander
- Shenandoah Salamander
- Shield-nosed Leaf-nosed Bat
- Shillong Bubble-nest Frog
- Shimaakane Dragonfly
- Shimba Hills Reed Frog
- Shiny Pigtoe
- Shinyrayed Pocketbook
- Shipton's Mountain Cavy
- Shoa Forest Treefrog
- Shoebill
- Short-billed Black Cockatoo
- Short-crested Blue Monarch
- Short-crested Coquette
- Short-eared Dog
- Short-legged Ground-roller
- Short-legged Horned Toad
- Short-legged Stream Frog
- Short-necked Turtle
- Short-nosed Green Frog
- Short-tailed Albatross
- Short-tailed Babbler
- Short-tailed Brush-furred Rat
- Short-tailed Chinchilla
- Short-tailed Frogmouth
- Short-tailed Mosaic-tailed Rat
- Short-tailed Roundleaf Bat
- Short-tailed Scimitar-babbler
- Short-tailed Snake
- Short-toed Coucal
- Shortjaw Cisco
- Shortjawed Kokopu
- Shortlip Electric Ray
- Shortnose Cisco
- Shortnose Guitarfish
- Shortnose Sturgeon
- Shortnose Sucker
- Shortridge's Langur
- Shortridge's Native Mouse
- Shortsnout Water Frog
- Shortspine Thornyhead
- Shortspire Hornsnail
- Shorttail Nurse Shark
- Shoshone Sculpin
- Shovelmouth
- Shrew-faced Squirrel
- Shuicheng Salamander
- Shy Albatross
- Shy Ground-dove
- Siam Narrowmouth Toad
- Siamang
- Siamese Bat Catfish
- Siamese Crocodile
- Siamese Fireback
- Siamese Stream Toad
- Siamthelphusa holthuisi
- Siau Scops-owl
- Sibayi Goby
- Siberian Grouse
- Siberian Musk Deer
- Siberian Sturgeon
- Siberian White Crane
- Siberut Flying Squirrel
- Siberut Macaque
- Sibree's Dwarf Lemur
- Sichuan Gray Jay
- Sichuan Lazy Toad
- Sichuan Partridge
- Sichuan Snub-nosed Monkey
- Sichuan Treecreeper
- Sickle-winged Nightjar
- Sicyopus axilimentus
- Sidamo Lark
- Siderastrea glynni
- Sierra Juarez Alligator Lizard
- Sierra Juarez Brook Frog
- Sierra Juarez Salamander
- Sierra Juarez Treefrog
- Sierra Leone Grassland Frog
- Sierra Leone Reed Frog
- Sierra Leone Water Frog
- Sierra Madre Ground Squirrel
- Sierra Madre Occidental Frog
- Sierra Madre Sparrow
- Sierra Madre Wrinkled Ground Frog
- Sierra Maestra Blotched Frog
- Sierra Nevada Blue
- Sierra Nevada Yellow-legged Frog
- Sierra Pygmy Grasshopper
- Sika Deer
- Silent Grass Mouse
- Silent Valley Torrent Toad
- Silktail
- Silky Sifaka
- Silky Snail
- Silt Elimia
- Silver Glen Springs Cave Crayfish
- Silver Marsupial Frog
- Silver Oriole
- Silver Perch
- Silver Pika
- Silver Rice Rat
- Silver Shark
- Silver-eyed Barred Frog
- Silverstone's Climbing Salamander
- Silvery Gibbon
- Silvery Kingfisher
- Silvery Lutung
- Silvery White Fish
- Silvery Wood-pigeon
- Silvery-brown Bare-face Tamarin
- Simalur Archipelago Rat
- Simba Bubble-nest Frog
- Simeulue Scops-owl
- Similar Frog
- Simmon's Mouse Lemur
- Simmons' Treefrog
- Simochromis margaretae
- Simochromis marginatus
- Sinai Hooktail
- Singapore Roundleaf Horseshoe Bat
- Sinhalestes orientalis
- Sinogastromyzon puliensis
- Sinopotamon ebianense
- Sinopotamon hanyangense
- Sinployea pitcairnensis
- Sipora Flying Squirrel
- Sir David's Long-beaked Echidna
- Sira Poison Frog
- Sira Tanager
- Sirang
- Siraz Baligi
- Siraz Baliginin Capoeta
- Siskiyou Chloealtis Grasshopper
- Siskiyou Mountains Salamander
- Six-tubercled Amazon River Turtle
- Sixgill Sawshark
- Skadar Gudgeon
- Skadar Shad
- Skirted Hornsnail
- Skistodiaptomus carolinensis
- Skulpin
- Sky-blue Poison Frog
- Skyros Wall Lizard
- Slackwater Darter
- Slaty Becard
- Slaty Bristlefront
- Slaty Cuckoo-dove
- Slaty Egret
- Slaty-backed Hemispingus
- Slaty-backed Jungle-flycatcher
- Slaty-backed Thrush
- Slaty-mantled Sparrowhawk
- Slave Raiding Ant
- Slender Antbird
- Slender Campeloma
- Slender Chub
- Slender Hammerhead
- Slender Oldfield Mouse
- Slender Redfin
- Slender Worm Salamander
- Slender-billed Babbler
- Slender-billed Curlew
- Slender-billed Finch
- Slender-billed Flufftail
- Slender-billed Grackle
- Slender-billed Vulture
- Slender-billed White-eye
- Slender-horned Gazelle
- Slender-tailed Deer Mouse
- Slenderwrist Burrowing Crayfish
- Sloth Bear
- Slowwater Elimia
- Small Amu-dar Shovelnose Sturgeon
- Small Dorcopsis
- Small Eye Golden-line Fish
- Small Fanwinged Katydid
- Small Grainy Frog
- Small Iron-gray Dwarf Lemur
- Small Kauai Thrush
- Small Lappet Moth
- Small Red Brocket
- Small Sparrowhawk
- Small Sulawesi Cuscus
- Small Three-toed Skink
- Small Woolly Bat
- Small Wrinkled Frog
- Small-eared Toad
- Small-eared Treefrog
- Small-headed Frog
- Small-scaled Skink
- Small-toothed Fruit Bat
- Small-toothed Harvest Mouse
- Small-toothed Sportive Lemur
- Small-webbed Bell Toad
- Smalleye Shiner
- Smallscale Redfin
- Smallscaled Grouper
- Smalltooth Sawfish
- Smith's Blue Butterfly
- Smith's Dwarf Chamaeleon
- Smith's False Brook Salamander
- Smith's Minute Salamander
- Smith's Shrew
- Smokey Bat
- Smoky Flying Squirrel
- Smoky Madtom
- Smoky Mouse
- Smoky White-toothed Shrew
- Smoky-winged Threadtail
- Smooth Bum Coral
- Smooth Cauliflower Coral
- Smooth Rocksnail
- Smooth Skate
- Smooth-coated Otter
- Smoothback Angel Shark
- Smoothnose Wedgefish
- Smoothtooth Blacktip
- Snail Darter
- Snake River Physa Snail
- Snake Skin Hunter Slug
- Snares Crested Penguin
- Snoring Rail
- Snow Leopard
- Snow Mountain Quail
- Snowy-cheeked Laughingthrush
- Snowy-throated Babbler
- Sociable Lapwing
- Social Sprite
- Social Tuco-tuco
- Sockeye Salmon
- Socorro Dove
- Socorro Isopod
- Socorro Mockingbird
- Socorro Parakeet
- Socorro Springsnail
- Socorro Wren
- Socotra Bunting
- Socotra Cormorant
- Soemmerring's Gazelle
- Sokoke Bushy-tailed Mongoose
- Sokoke Pipit
- Solenopsis daguerrei
- Solenopsis solenopsidis
- Solitary Black Millipede
- Solitary Fruit-eating Bat
- Solitary Tinamou
- Solo Goodeido
- Solomon Island Palm Frog
- Solomon Islands Cuckooshrike
- Solomons Flying Fox
- Somali Grosbeak
- Somali Thrush
- Somalian Blind Barb
- Somalian Cavefish
- Somanniathelphusa zanklon
- Sombre Kingfisher
- Sombre Leaf-warbler
- Somersiella sterreri
- Sonaghen
- Sonan's Salamander
- Songatana
- Songpan Slow Frog
- Sonora Mud Turtle
- Sonora Tiger Salamander
- Sonoran Woodrat
- Sonson Stubfoot Toad
- Sooty Albatross
- Sooty Ant-tanager
- Sooty Babbler
- Sooty Crayfish
- Sooty Falcon
- Sooty Mangabey
- Sooty Shearwater
- Sooty-capped Babbler
- Sooty-capped Puffbird
- Sorata Andes Frog
- Sordid Bubble-nest Frog
- Sorensen's Leaf-nosed Bat
- South American Red-lined Turtle
- South American Rocket Frog
- South American Tapir
- South American True Toad
- South Andean Huemul
- South Asian Box Turtle
- South Australia Crab
- South Brazilian Skate
- South Georgia Pipit
- South Island Wren
- South Mountain Gray-cheeked Salamander
- South Nicobar Serpent-eagle
- South Sierra Nevada Springsnail
- Southeast Asian Long-fingered Bat
- Southern Acornshell
- Southern Bald Ibis
- Southern Banded Snake-eagle
- Southern Black Millipede
- Southern Bluefin Tuna
- Southern Bristle-tyrant
- Southern Brown Kiwi
- Southern Cassowary
- Southern Cavefish
- Southern Clubshell
- Southern Combshell
- Southern Crowned-pigeon
- Southern Damselfly
- Southern Flat-tailed Dwarf Lemur
- Southern Giant Clam
- Southern Giant-petrel
- Southern Highland Treefrog
- Southern Hog-nosed Snake
- Southern Hutia
- Southern Kidneyshell
- Southern Long-nosed Armadillo
- Southern Luzon Phloeomys
- Southern Marbled Newt
- Southern Mountain Frog
- Southern New Guinea Snapping Turtle
- Southern Pig-tailed Macaque
- Southern Pigtoe
- Southern Planigale
- Southern Pudu
- Southern Right Whale
- Southern River Otter
- Southern Rockhopper Penguin
- Southern Round-gland Toad
- Southern Royal Albatross
- Southern Sawtail Catshark
- Southern Sierra Madre Treefrog
- Southern Snaketail
- Southern Three-banded Armadillo
- Southern Tuco-tuco
- Southern Water Vole
- Southern Whipping Frog
- Southwestern Toad
- Southwestern Willow Flycatcher
- Sowbug Rice Rat
- Spaldings Robber Frog
- Spanish Algyroides
- Spanish Imperial Eagle
- Spanish Lynx
- Spanish Painted Frog
- Spartan Crow
- Spatula-toothed Snake
- Spea hammondii
- Speartooth Shark
- Speckle-chested Piculet
- Speckled Burrowing Crayfish
- Speckled Dace
- Speckled Egg Frog
- Speckled Ground Squirrel
- Speckled Pocketbook
- Speckled Smoothhound
- Spectacled Duck
- Spectacled Petrel
- Spectral Bat
- Spectral Tarsier
- Speke's Gazelle
- Spekia coheni
- Spelaeodiscus tatricus
- Spelaeoecia bermudensis
- Speleoithona bermudensis
- Speleophria bivexilla
- Speleophria scottodicarloi
- Spencer's River Tree Frog
- Spengler's Freshwater Mussel
- Speocirolana thermydromis
- Sperm Whale
- Sphaerolana affinis
- Sphaerolana interstitialis
- Sphaerolana karenae
- Sphaerophysa dianchiensis
- Sphagnum Frog
- Spider Tortoise
- Spikedace
- Spindle Elimia
- Spinefinger Treefrog
- Spineless Forest Lizard
- Spinomantis massi
- Spiny Angel Shark
- Spiny Crayfish (Euastacus armatus)
- Spiny Eye-lid Ground Frog
- Spiny Frog
- Spiny Indonesian Treefrog
- Spiny River Snail
- Spiny Seram Island Rat
- Spiny Terrapin
- Spiny-breasted Frog
- Spiny-faced Antshrike
- Spiny-flanked Frog
- Spiny-tail Crayfish
- Spinycheek Grouper
- Spiral Hornsnail
- Spiralothelphusa fernandoi
- Spiralothelphusa parvula
- Spirorbula latens
- Spirorbula squalida
- Spix's Red-handed Howler Monkey
- Splendid Pearlfish
- Splendid Poison Frog
- Splendid Toadfish
- Splendid White-eye
- Spoon-billed Sandpiper
- Spot-billed Pelican
- Spot-breasted Antvireo
- Spot-breasted White-eye
- Spot-necked Bulbul
- Spot-tailed Earless Lizard
- Spot-tailed Warty Newt
- Spot-winged Parrotlet
- Spot-winged Thrush
- Spotback Skate
- Spotfin Gambusia
- Spotted Bamboowren
- Spotted Cochran Frog
- Spotted Crocias
- Spotted Eagle Ray
- Spotted Ground-thrush
- Spotted Handfish
- Spotted Houndshark
- Spotted Imperial-pigeon
- Spotted Linsang
- Spotted Loach
- Spotted Minute Salamander
- Spotted Owl
- Spotted Pond Turtle
- Spotted Rocksnail
- Spotted Shovelnose Ray
- Spotted Snout-burrower
- Spotted Spiny Lizard
- Spotted Turtle
- Spotted Wobbegong
- Spotted-tailed Quoll
- Sprague's Pipit
- Spring Cave Amphipod
- Springfish
- Spruce-fir Moss Spider
- Squalius anatolicus
- Squalius aradensis
- Squalius illyricus
- Squalius keadicus
- Squalius lucumonis
- Squalius malacitanus
- Squalius microlepis
- Squalius moreoticus
- Squalius pyrenaicus
- Squalius sp. nov. 'Aoos'
- Squalius sp. nov. 'Evia'
- Squalius svallize
- Squalius tenellus
- Squalius torgalensis
- Squalius valentinus
- Squalius zrmanjae
- Sri Lanka Blue Magpie
- Sri Lanka Bush-warbler
- Sri Lanka Dot Frog
- Sri Lanka Forktail
- Sri Lanka Grappletail
- Sri Lanka Hill Myna
- Sri Lanka Scaly Thrush
- Sri Lanka Whistling-thrush
- Sri Lanka Wood-pigeon
- Sri Lankan Highland Tree Mouse
- Sri Lankan Long-tailed Shrew
- Sri Lankan Mountain Rat
- Sri Lankan Relict Ant
- Sri Lankan Rice Frog
- Sri Lankan True Toad
- St Helena Dragonet
- St. Croix Ground Lizard
- St. Helena Chromis
- St. Helena Plover
- St. Lucia Black Finch
- St. Lucia Oriole
- St. Lucia Parrot
- St. Nicholas Robber Frog
- St. Patricks River Freshwater Snail
- St. Pauls River Freshwater Snail
- St. Vincent Blacksnake
- St. Vincent Parrot
- Stanleya neritinoides
- Star Finch
- Star Sturgeon
- Starlet Sea Anemone
- Starrett's Treefrog
- Starry Cup Coral (Acanthastrea bowerbanki)
- Steelhead
- Stegastes sanctaehelenae
- Stegastes sanctipauli
- Steindachner's River Frog
- Steiner's Bubble-nest Frog
- Stejneger's Paddy Frog
- Stejneger's Petrel
- Steller Sea-lion
- Steller's Eider
- Steller's Sea-eagle
- Stellmack's Cave Amphipod
- Stelomon erawanense
- Stelomon kanchanaburiense
- Stenobothrus eurasius
- Stephan's Water Frog
- Stephen's Island Gecko
- Stephen's Kangaroo Rat (Dipodomys cascus)
- Stephens Island Weta
- Sterlet
- Stevart's Egg Frog
- Stewart Island Shag
- Stierling's Woodpecker
- Stiphodon surrufus
- Stirrupshell
- Stitchbird
- Stocky Pebblesnail
- Stoliczia bella
- Stoliczia changmanae
- Stoliczia chaseni
- Stoliczia cognata
- Stoliczia goal
- Stoliczia karenae
- Stoliczia kedahensis
- Stoliczia leoi
- Stoliczia pahangensis
- Stoliczia panhai
- Stoliczia perlensis
- Stoliczia tweedei
- Stone Crayfish
- Stone-leaf Coral
- Storm's Stork
- Strabomantis necopinus
- Straight-billed Reedhaunter
- Strandzha Minnow
- Strange-tailed Tyrant
- Strauch's Spotted Newt
- Straw-coloured Fruit Bat
- Straw-headed Bulbul
- Streak-breasted Bulbul
- Streaked Bulbul
- Streaked Reed-warbler
- Streaky-breasted Jungle-flycatcher
- Stream Reed Frog
- Stream Salamander
- Streamside Salamander
- Strengeriana antioquensis
- Streptocephalus dendrophorus
- Streptocephalus dendyi
- Streptocephalus gracilis
- Streptocephalus guzmani
- Streptocephalus moorei
- Streptocephalus woottoni
- Streptocephalus zuluensis
- Stresemann's Bristlefront
- Striated Caracara
- Striated Darter
- Striated Lorikeet
- Striated Softtail
- Stripe-faced Fruit Bat
- Striped Dogfish
- Striped Goodeid
- Striped Hyena
- Striped Legless Lizard
- Striped Mogurnda
- Striped Narrow-headed Softshell Turtle
- Striped Newt
- Striped Rice Rat
- Striped Roundleaf Bat
- Striped Skink
- Striped Tailed Delma
- Striped Wren-babbler
- Strong Black Millipede
- Strong-tailed Oldfield Mouse
- Strongylognathus afer
- Strongylognathus alboini
- Strongylognathus alpinus
- Strongylognathus arnoldii
- Strongylognathus caeciliae
- Strongylognathus cecconii
- Strongylognathus chelifer
- Strongylognathus christophi
- Strongylognathus dalmaticus
- Strongylognathus destefanii
- Strongylognathus emeryi
- Strongylognathus foreli
- Strongylognathus huberi
- Strongylognathus insularis
- Strongylognathus italicus
- Strongylognathus karawajevi
- Strongylognathus kervillei
- Strongylognathus koreanus
- Strongylognathus kratochvilli
- Strongylognathus minutus
- Strongylognathus palaestinensis
- Strongylognathus pisarskii
- Strongylognathus rehbinderi
- Strongylognathus ruzskyi
- Strongylognathus silvestrii
- Strumigenys xenos
- Stuart's Bubble-nest Frog
- Stubfoot Toad
- Stump-tailed Macaque
- Stupidogobius flavipinnis
- Sturgeon Chub
- Stygicola dentata
- Stygodiaptomus kieferi
- Stygodiaptomus petkovskii
- Stygothelphusa bidiensis
- Stylophora wellsi
- Suavocallia splendens
- Subdesert Mesite
- Suboestophora jeresae
- Subtle Cave Amphipod
- Subuliniscus arambourgi
- Succinea piratarum
- Succinea quadrasi
- Sucre Water Frog
- Sud Robber Frog
- Sudeten Ringlet
- Sugarfoot Moth Fly
- Sula Archipelago Rat
- Sula Pitta
- Sula Scrubfowl
- Sulawesi Babirusa
- Sulawesi Bear Cuscus
- Sulawesi Coelacanth
- Sulawesi Dwarf Kingfisher
- Sulawesi Eared-nightjar
- Sulawesi Forest Turtle
- Sulawesi Giant Squirrel
- Sulawesi Golden Owl
- Sulawesi Harpy Fruit Bat
- Sulawesi Soft-furred Rat
- Sulawesi Spiny Rat
- Sulawesi Wart Frog
- Sulawesi Warty Pig
- Sulawesi Woodcock
- Sulu Bleeding-heart
- Sulu Hornbill
- Sulu Woodpecker
- Sumatra Toad
- Sumatran Babbler
- Sumatran Cochoa
- Sumatran Drongo
- Sumatran Green-pigeon
- Sumatran Ground Cuckoo
- Sumatran Laughingthrush
- Sumatran Orangutan
- Sumatran Rhinoceros
- Sumatran Serow
- Sumatran Striped Rabbit
- Sumba Boobook
- Sumba Brown Flycatcher
- Sumba Buttonquail
- Sumba Green-pigeon
- Sumba Hornbill
- Sumbawa Tiger
- Sumichrast's Wren
- Sun Parakeet
- Sun-tailed Monkey
- Sunda Clouded Leopard
- Sunda Coucal
- Sunda Fruit Bat
- Sunda Nightjar
- Sunda Pangolin
- Sundathelphusa minahassae
- Sundathelphusa rubra
- Sundathelphusa sottoae
- Sundoreonectes tiomanensis
- Sunset Frog
- Superagui Lion Tamarin
- Superb Parrot
- Superb Pitta
- Superb Spharagemon Grasshopper
- Supramonte Cave Salamander
- Surge Grouper
- Susana's Forest Treefrog
- Suwannee Moccasinshell
- Svynnerton's Bush Squirrel
- Swallow-tailed Cotinga
- Swamp Deer
- Swamp Francolin
- Swan Galaxias
- Swan Goose
- Swierstra's Francolin
- Swift Parrot
- Swinhoe's Pheasant
- Swinhoe's Rail
- Swollen-nosed Side-blotched Lizard
- Sword-tailed Newt
- Swynnerton's Forest Robin
- Sydney Hawk Dragonfly
- Symington's Robber Frog
- Sympetrum nigrifemur
- Symphyllia hassi
- Syncarid Shrimp
- Synodontis macrops
- Synodontis ruandae
- Synodontis victoriae
- Syr-darya Shovelnose Sturgeon
- Syrian Serin
- Tablas Wrinkled Ground Frog
- Table Cape Freshwater Snail
- Table Mountain Ghost Frog
- Tacarcuna Tapaculo
- Tacarcuna Wood-quail
- Tacheocampylaea tacheoides
- Tachira Antpitta
- Taczanowski's Tinamou
- Tadapi Treefrog
- Tagibo Wart Frog
- Tahiti Flycatcher
- Tahiti Petrel
- Tahiti Reed Warbler
- Tahiti Swiftlet
- Tai Forest Treefrog
- Tai River Frog
- Taipei Flying Frog
- Taita Apalis
- Taita Falcon
- Taita Shrew
- Taita Thrush
- Taiwan Bulbul
- Taiwan Guitarfish
- Taiwan Gulper Shark
- Taiwan Hwamei
- Taiwan Long-eared Bat
- Taiwan Partridge
- Taiwan Salamander
- Taiwan Vole
- Taiwan Waist Crab
- Taiwan's South China Sea River Crab
- Taiwanese Tube-nosed Bat
- Takahe
- Takin
- Talamancan Small Eared Shrew
- Talamancan Yellow-shouldered Bat
- Talaud Bear Cuscus
- Talaud Black Birdwing
- Talaud Bush-hen
- Talaud Fruit Bat
- Talaud Kingfisher
- Talaud Rail
- Taliabu Masked-owl
- Taliang Knobby Newt
- Tam Dao Salamander
- Tama Harlequin Frog
- Tamaraw
- Tamarugo Conebill
- Tamaulipan Blindcat
- Tamaulipan False Brook Salamander
- Tamaulipan Montane Garter Snake
- Tamaulipan Woodrat
- Tampico Pearlymussel
- Tana Labeo
- Tana River Mangabey
- Tana River Red Colobus Monkey
- Tanager Finch
- Tanah Rata Wart Frog
- Tancitaran Dusky Rattlesnake
- Tandapi Giant Glass Frog
- Tandroka Madagascar Frog
- Tandy's Smalltongue Toad
- Tanganyicia rufofilosa
- Tanganyika Clown
- Tanganyika Lates
- Tanimbar Bush-warbler
- Tanimbar Cockatoo
- Tanimbar Megapode
- Tanimbar Starling
- Tanna Fruit-dove
- Tanner's Black Camel Cricket
- Tanners' Reed Frog
- Tantalophis discolor
- Tanzania Screeching Frog
- Tanzanian Shrew
- Tanzanian Vlei Rat
- Tanzanian Woolly Bat
- Taosze Spiny Toad
- Tapanti Giant Salamander
- Tapanti Moss Salamander
- Tapping Nursery-frog
- Tar River Spinymussel
- Tarabundi Vole
- Tarahumara Frog
- Tarai Gray Langur
- Tarella Shrew
- Tarndale Bully
- Taroko Crab
- Tartaruga
- Tasan Eastern Frog
- Tasmanian Anaspid Crustacean
- Tasmanian Devil
- Tasmanian Forester Kangaroo
- Tasmanian Tiger
- Tasmanian Torrent Midge
- Tasmanipatus anophthalmus
- Tasmanoplectron isolatum
- Tasselled Wobbegong
- Tatama Climbing Salamander
- Tate's Triok
- Tawau Wart Frog
- Tawitawi Brown-dove
- Tawny Nurse Shark
- Tawny Piculet
- Tawny Tit-spinetail
- Tawny-breasted Wren-babbler
- Tawny-chested Flycatcher
- Taylor's Caecilian
- Taylor's Minute Salamander
- Taylor's Salamander
- Taylor's Wrinkled Ground Frog
- Tayrona Blenny
- Tehachapi Slender Salamander
- Tehuana lamothei
- Tehuana poglayenorum
- Tehuana veracruzana
- Tehuantepec Jackrabbit
- Telefomin Cuscus
- Telescope Hornsnail
- Telescopus hoogstraali
- Telestes beoticus
- Telestes croaticus
- Telestes fontinalis
- Telestes metohiensis
- Telestes polylepis
- Telestes turskyi
- Teleutomyrmex kutteri
- Teleutomyrmex schneideri
- Telford's Shrew
- Telmatherina abendanoni
- Telmatherina antoniae
- Telmatherina celebensis
- Telmatherina ladigesi
- Telmatherina obscura
- Telmatherina opudi
- Telmatherina prognatha
- Telmatherina sarasinorum
- Telmatherina wahjui
- Telmatobius carrillae
- Telmatobius degener
- Telmatobius edaphonastes
- Telmatobius hintoni
- Temminck's Flying Fox
- Temminck's Flying Squirrel
- Temminck's Seedeater
- Temnick's Ground Pangolin
- Temotu Flying Fox
- Tenchall's False Brook Salamander
- Tenerife Speckled Lizard
- Tenkile
- Tennessee Cave Salamander
- Tennessee Clubshell
- Tennessee Clubtail
- Tennessee Pebblesnail
- Teotepec Salamander
- Tepehuan Shiner
- Tepui Bannerwing
- Teramulus waterloti
- Terrathelphusa kuchingensis
- Terrestrial Arboreal Alligator Lizard
- Terrestrial Splayfoot Salamander
- Terrys Creek Freshwater Snail
- Tetramorium microgyna
- Tetramorium parasiticum
- Tetrathemis denticauda
- Tetrathemis ruwensoriensis
- Tetrathemis yerburii
- Tevoro Clam
- Texas Blind Salamander
- Texas Emerald
- Texas Heelsplitter
- Texas Hornshell
- Texas Kangaroo Rat
- Texas Salamander
- Thailand Giant Catfish
- Thailand Leaf-nosed Bat
- Thaksinthelphusa yongchindaratae
- Thalassoma ascensionis
- Thalassothemis marchali
- Thamnophis scaliger
- Thapsia buraensis
- Thapsia snelli
- Thaumatodon hystricelloides
- The Magou
- Theba arinagae
- Theloderma rhododiscus
- Thermochoria jeanneli
- Thermodiaptomus galeboides
- Thermosphaeroma cavicauda
- Thermosphaeroma dugesi
- Thermosphaeroma macrura
- Thermosphaeroma milleri
- Thermosphaeroma smithi
- Theskelomensor creon
- Thessaly Gudgeon
- Thestor compassbergae
- Thestor dryburghi
- Thestor kaplani
- Thestor pringlei
- Thestor rossouwi
- Thestor stepheni
- Thestor strutti
- Thestor swanepoeli
- Thestor tempe
- Thestor yildizae
- Thick-billed Parrot
- Thick-lipped Spikethumb Frog
- Thicklip Pupfish
- Thickshell Pondsnail
- Thin Leaf Lettuce Coral
- Thin-spined Porcupine
- Thomas' Robber Frog
- Thomas's Big-eared Bat
- Thomas's Big-eared Brown Bat
- Thomas's Giant Deer Mouse
- Thomas's Langur
- Thomas's Oldfield Mouse
- Thomas's Sac-winged Bat
- Thomas's Water Mouse
- Thomas's Yellow-shouldered Bat
- Thomasset's Seychelles Frog
- Thompson's Water Frog
- Thomson's Gazelle
- Thorn Coral
- Thorny Spikethumb Frog
- Thousand Palms Desert Snail
- Three-banded Butterflyfish
- Three-coloured Harlequin Toad
- Three-keeled Asian Turtle
- Three-striped Roof Turtle
- Three-toed Guanabara Frog
- Three-toed Jacamar
- Three-wattled Bellbird
- Throscodectes xederoides
- Throscodectes xiphos
- Thylacine Darner
- Thyolo Alethe
- Tibetan Antelope
- Tibetan Babax
- Tibetan Bubble-nest Frog
- Tibetan Bunting
- Tibetan Eared-pheasant
- Tibetan Gazelle
- Tickell's Brown Hornbill
- Tico Salamander
- Tidewater Goby
- Tidewater Interstitial Amphipod
- Tidewater Stygonectid Amphipod
- Tientai Rough-skinned Frog
- Tiger
- Tiger Chameleon
- Tiger Cod
- Tiger Tail Seahorse
- Tight Coin
- Tigoni Reed Frog
- Tilapia bakossiorum
- Tilapia bemini
- Tilapia bythobathes
- Tilapia deckerti
- Tilapia flava
- Tilapia guinasana
- Tilapia gutturosa
- Tilapia imbriferna
- Tilapia kottae
- Tilapia snyderae
- Tilapia sp. nov. 'jewel'
- Tilapia sp. nov. 'little black'
- Tilapia sp. nov. 'yellow-green'
- Tilapia spongotroktis
- Tilapia thysi
- Timavo Sculpin
- Timor Bush-warbler
- Timor Green-pigeon
- Timor Imperial Pigeon
- Timor Sparrow
- Timor Yellow Tiger
- Tinian Monarch
- Tinkling Froglet
- Tiny Reed Frog
- Tiny Stream Toad
- Tiny Yellow Bat
- Tiro
- Tirunvelveli's Hill Frog
- Titicaca Grebe
- Titicaca Water Frog
- Tiwaripotamon edostilus
- Tlahcuiloh Salamander
- Tlaloc's Leopard Frog
- Todos Santos Island Kingsnake
- Togian Hawk-owl
- Togian Islands Babirusa
- Togo Slippery Frog
- Togo Toad
- Tokyo Salamander
- Toliara Rain Frog
- Tolima Dove
- Tolima Poison Frog
- Tollo
- Tomas' Worm Salamander
- Tomato Frog
- Tombigbee Riverlet Crayfish
- Tomicha cawstoni
- Tomicha natalensis
- Tomicha rogersi
- Tomichia cawstoni
- Tomichia differens
- Tomichia natalensis
- Tomichia rogersi
- Tomichia tristis
- Tomichia ventricosa
- Tomichia zwellendamensis
- Tominanga aurea
- Tominanga sanguicauda
- Tomistoma
- Tondanichthys kottelati
- Tongaland Cannibal Snail
- Tongan Whistler
- Tongue Coral
- Tonkean Black Macaque
- Tonkin Snub-nosed Monkey
- Tonkin Toad
- Tooth Cave Ground Beetle
- Tooth Cave Pseudoscorpion
- Tooth Cave Spider
- Tooth-billed Pigeon
- Toothless Blindcat
- Toothy Splayfoot Salamander
- Topeka Shiner
- Toque Macaque
- Tor yunnanensis
- Torrent Paa Frog
- Torrent Sucker Frog
- Torrent Tree Frog
- Torres Redbelly Toad
- Torres's Crimson-nosed Rat
- Torresitrachia thedana
- Torreya Pygmy Grasshopper
- Torrington Bubble-nest Frog
- Totoaba Seatrout
- Toucan Barbet
- Towne's Clubtail
- Townsend's Big-eared Bat
- Townsend's Dwarf Salamander
- Townsend's Ground Squirrel
- Townsend's Shearwater
- Toxopeus' Yellow Tiger
- Tracaja
- Trachycystis clifdeni
- Trachycystis haygarthi
- Trachycystis placenta
- Tradou Redfin
- Tramlap Flying Frog
- Transitional Colilargo
- Transverse Grand Pyrg
- Transverse Volcanic Leopard Frog
- Tras
- Travancore Flying Squirrel
- Travancore Tortoise
- Tree Hole Crab
- Tree Shrew Tenrec
- Tree Toad
- Trelawny Parish Robber Frog
- Tres Marias Cottontail
- Tres Marias Deer Mouse
- Triangular Kidneyshell
- Tributary Wart Frog
- Trichodactylus crassus
- Trichomycterus chungarensis
- Tricolored Blackbird
- Tricula montana
- Tridacna rosewateri
- Trimeresurus mangshanensis
- Trindade Petrel
- Trinidad Flathead Frog
- Trinidad Groin-spot Frog
- Trinidad Heart-tongued Frog
- Trinidad White-headed Curassow
- Trinity Bristle Snail
- Triplophysa xiangxensis
- Trispot Darter
- Tristam's Woodpecker
- Tristan Albatross
- Tristan Bunting
- Tristan Thrush
- Tristram's Storm-petrel
- Tristramella sacra
- Trithemis nigra
- Trochidrobia inflata
- Trochidrobia minuta
- Trochidrobia smithi
- Trochochlamys ogasawarana
- Trochoidea gharlapsi
- Trochoidea molinae
- Trochoidea pseudojacosta
- Trochoidea zaharensis
- Trochomorpha apia
- Troglocaris anophthalmus
- Tropheops gracilior
- Tropheops microstoma
- Tropheops tropheops
- Tropheus duboisi
- Tropheus polli
- Tropical Forest Snake (Calamodontophis paucidens)
- Tropical Forest Snake (Calamodontophis sp. nov.)
- Tropical Pocket Gopher
- Tropidophora articulata
- Tropidophora deburghiae
- Tropidophoxinellus spartiaticus
- Tropidoptera heliciformis
- Tropocyclops federensis
- Tropocyclops nananae
- Tropodiaptomus burundensis
- Tropodiaptomus kilimensis
- Tropodiaptomus kissi
- Tropodiaptomus neumanni
- Tropodiaptomus simplex
- Tropodiaptomus stuhlmanni
- Trout Cod
- Trueb's Madagascar Treefrog
- Trueb's Water Frog
- Truncatellina arcyensis
- Tsaratanana Bright-eyed Frog
- Tsaratanana Giant Treefrog
- Tschudi's Yellow-shouldered Bat
- Tsingy Madagascar Frog
- Tsinpa Salamander
- Tuamotu Kingfisher
- Tuamotu Sandpiper
- Tuatara
- Tube Robber Frog
- Tubercled Blossom Pearlymussel
- Tubuaia fosbergi
- Tuco-tuco Of The Dunes
- Tucuman Amazon
- Tucuman Mountain-finch
- Tucuman Water Frog
- Tufted Deer
- Tufted Gray Langur
- Tufted Ground Squirrel
- Tufted Jay
- Tulotoma Snail
- Tumba
- Tumbala Climbing Rat
- Tumbes Tyrant
- Turbinaria Coral (Turbinaria bifrons)
- Turgenitubulus aslini
- Turgenitubulus costus
- Turgenitubulus depressus
- Turgenitubulus foramenus
- Turgenitubulus opiranus
- Turgenitubulus pagodula
- Turgenitubulus tanmurrana
- Turgid Blossom Pearlymussel
- Turkana Mud Turtle
- Turkish Frog
- Turkish Red Damsel
- Turner's Eremomela
- Turquino Fern Frog
- Turquino Red-armed Frog
- Turquino Robber Frog
- Turquino White-footed Frog
- Turquoise Cotinga
- Turquoise Dacnis
- Turquoise Parakeet
- Turquoise-throated Puffleg
- Tuscumbia Darter
- Tusked Frog
- Tuxtla Knobtail
- Tuxtla Quail-dove
- Tuxtlan Earth Snake
- Tweedie's Wart Frog
- Twin-spotted Tolucan Ground Snake
- Twin-striped Clubtail
- Two-fingered Skink
- Typhleotris madgascarensis
- Typhleotris pauliani
- Typhlopseudothelphusa mocinoi
- Tyrrheniellina josephi
- Tytler's Leaf-warbler
- Tzunantza Giant Glass Frog
- Ubatuba Dwarf Frog
- Ucucha Thomasomys
- Udzungwa Forest-partridge
- Udzungwa Red Colobus
- Uegitglanis zammaranoi
- Ukami Reed Frog
- Ultramarine Lorikeet
- Uluguru Banana Frog
- Uluguru Big-fingered Frog
- Uluguru Blue-bellied Frog
- Uluguru Bush-shrike
- Uluguru Tree Frog
- Umma femina
- Unarmored Threespine Stickleback
- Uncompahgre Fritillary Butterfly
- Unexpected Cotton Rat
- Unga
- Unicolored Oldfield Mouse
- Unicolored Tree Rat
- Unicoloured Antwren
- Unicoloured Thrush
- Upland Burrowing Treefrog
- Upland Combshell
- Upland Hornsnail
- Upland Horseshoe Bat
- Upper Amazon Stubfoot Toad
- Upper Castra Freshwater Snail
- Upper Castra River Freshwater Snail
- Upper Cerro Minute Salamander
- Upper Magdalena Tapaculo
- Uramphisopus pearsoni
- Urial
- Urich's Tyrannulet
- Uromastyx alfredschmidti
- Urosaurus auriculatus
- Urosaurus clarionensis
- Urothemis thomasi
- Urrao Cochran Frog
- Ursula's Mouse-coloured Sunbird
- Usambara Akalat
- Usambara Banana Frog
- Usambara Big-fingered Frog
- Usambara Blue-bellied Frog
- Usambara Eagle-owl
- Usambara Forest Toad
- Usambara Hyliota
- Usambara Shrew
- Usambara Torrent Frog
- Usambara Weaver
- Usangu Lampeye
- Utah Physa
- Utah Prairie Dog
- Utah Valvata Snail
- Utila Spiny-tailed Iguana
- Uvea Parakeet
- Uzungwe River Frog
- Uzungwe Toad
- Valdivia Ground Frog
- Valencia Toothcarp
- Valle del Cauca Rocket Frog
- Valle Santiago Beaked Toad
- Valley Flame Crayfish
- Van Dam's Vanga
- Van der Decken's Sifaka
- Van Deusen's Rat
- Van Gelder's Bat
- Van Zyl's Golden Mole
- Vanauatu Flying Fox
- Vancouver Island Marmot
- Vanikoro Flying Fox
- Vanikoro Monarch
- Vanuatu Imperial-pigeon
- Vanuatu Megapode
- Vaquita
- Varaldi's Spadefoot Toad
- Variable Cross Frog
- Variagated Pygmy Perch
- Varicorhinus leleupanus
- Varicorhinus nelspruitensis
- Varicorhinus platystoma
- Varicorhinus ruandae
- Varicorhinus ruwenzori
- Varicose Rocksnail
- Variegated Electric Ray
- Variegated Mogurnda
- Variegated Spider Monkey
- Variegated Treefrog
- Varna Gudgeon
- Varsikloja
- Vellard's Water Frog
- Velvet Worm
- Vendace
- Venezuela Round Stingray
- Venezuela Skate
- Venezuelan Bristle-tyrant
- Venezuelan Fish-eating Rat
- Venezuelan Flowerpiercer
- Venezuelan Herring
- Venezuelan Sylph
- Venezuelan Wood-quail
- Venezuelan Yellow Frog
- Ventriloquial Frog
- Veracruz False Brook Salamander
- Veracruz Green Salamander
- Veracruz Minute Salamander
- Veracruz Salamander
- Vermiculated Tree Frog
- Vermilion Darter
- Vernal Pool Fairy Shrimp
- Vernal Pool Tadpole Shrimp
- Verreaux's Coua
- Verreaux's Sifaka
- Vesey-fitzgerald's Burrowing Skink
- Victodrobia burni
- Victodrobia elongata
- Victodrobia millerae
- Victoria Crowned-pigeon
- Victoria Night Frog
- Victoria Robber
- Vicuna
- Vidumelon wattii
- Vietnam Crocodile Newt
- Vietnam Flying Frog
- Vietnam Greenfinch
- Vietnam Sucker Frog
- Vietnamese Bubble-nest Frog
- Vietnamese Cutia
- Vietnamese Pheasant
- Vilcabamba Brush-finch
- Villa's Grey Shrew
- Villalba Robber Frog
- Vinaceous-breasted Parrot
- Vincent's Bush Squirrel
- Vinogradov's Jerboa
- Violaceous Coucal
- Violet-throated Metaltail
- Vipera dinniki
- Virgin Islands Robber Frog
- Virgin Islands Tree Boa
- Virgin River Chub
- Virginia Fringed Mountain Snail
- Virginia Pigtoe
- Viridian Dacnis
- Visayan Broadbill
- Visayan Deer
- Visayan Flowerpecker
- Visayan Hornbill
- Visayan Pygmy Babbler
- Visayan Warty Pig
- Vissoke River Frog
- Vistonis Shemaja
- Vitelline Warbler
- Vitrea pseudotrolli
- Vogelkop Tree Kangaroo
- Voiceless Treefrog
- Volcan Barba Treefrog
- Volcan Cacoa Moss Salamander
- Volcan Tacana Toad
- Volcan Tajumulco Bromeliad Salamander
- Volcano Clawed Frog
- Volcano Knobtail
- Volcano Rabbit
- Volcano Shrew
- Volcano Swiftlet
- Volcanoes Cave Cricket
- Volga Shad
- Volvi Bleak
- Vordermann's Flying Squirrel
- Vortex Banded Mountain Snail
- Waccamaw Killifish
- Waccamaw Silverside
- Wager's Stream Frog
- Wagner's Viper
- Wahnes's Parotia
- Waigeo Spotted Cuscus
- Wake's Moss Salamander
- Walia Ibex
- Walker's Salamander
- Walker's Sierra Frog
- Walker's Stubfoot Toad
- Walker's Treefrog
- Wallace's Golden Birdwing Butterfly
- Wallace's Hawk-eagle
- Wallengren's Copper
- Walnut Elimia
- Wandering Albatross
- Wandering Salamander
- Wang's Crab
- Wanggao Warty Newt
- Ward's Red-backed Vole
- Ward's Trogon
- Warner Sucker
- Warren's Robber Frog
- Warsangli Linnet
- Warty Asian Tree Toad
- Warty Lazy Toad
- Washington Ground Squirrel
- Water Flea (Daphnia coronata)
- Water Flea (Daphnia jollyi)
- Water Flea (Daphnia nivalis)
- Water Flea (Daphnia occidentalis)
- Water Frog
- Watercress Darter
- Waterfall Climbing Cave Fish
- Waterfall Rocket Frog
- Waterfall Swift
- Watling Island Iguana
- Wattle-necked Softshell Turtle
- Wattled Crane
- Wattled Curassow
- Wattled Guan
- Watts's Spiny Rat
- Waved Albatross
- Wayanad Bubble-nest Frog
- Weasel Lemur
- Webb's Madagascar Frog
- Wedge-tailed Hillstar
- Wedge-tailed Jery
- Weining Groove-toed Frog
- Weka
- Wekiwa Hydrobe
- Wekiwa Siltsnail
- Weller's Salamander
- Wellington's Solitary Coral
- Wengeror's Cave Amphipod
- Wenxian Knobby Newt
- Werler's False Brook Salamander
- Wermuth's Reed Frog
- Werneria iboundji
- Werneria submontana
- West African Manatee
- West African Red Colobus
- West Caucasian Tur
- West Gawler Freshwater Snail
- West Indian Manatee
- West Indian Whistling-duck
- West Virginia Spring Salamander
- Western Barbastelle
- Western Bearded Pig
- Western Bristlebird
- Western Cochran Frog
- Western Crowned-pigeon
- Western False Pipistrelle
- Western Fanshell Mussel
- Western Gerbil
- Western Giant Eland
- Western Hare Wallaby
- Western Leopard Toad
- Western Lesser Bamboo Lemur
- Western Long-beaked Echidna
- Western Lowland Gorilla
- Western Mouse
- Western Nectar Bat
- Western Nimba Toad
- Western Quoll
- Western Ringtail Possum
- Western Rufous Bristlebird
- Western Spadefoot
- Western Tragopan Pheasant
- Western Vlei Rat
- Western Wattled Cuckooshrike
- Western Whipbird
- Western Woolly Lemur
- Westfall's Clubtail
- Westfall's Knobtail
- Westland Black Petrel
- Westraltrachia alterna
- Westraltrachia inopinata
- Westraltrachia lievreana
- Westraltrachia porcata
- Westraltrachia recta
- Westraltrachia subtila
- Westraltrachia turbinata
- Westralunio carteri
- Wet Rock Physa
- Wetapunga
- Wetar Figbird
- Wetar Ground Dove
- Wetmore's Robber Frog
- Wettstein's Andes Frog
- Weygoldt's Treefrog
- Weza Forest Treefrog
- Whale Shark
- Whisker Coral
- Whiskered Flowerpecker
- Whiskered Flying Squirrel
- Whiskered Pitta
- Whistling Fruit Dove
- Whistling Green-pigeon
- Whistling Warbler
- Whitaker's Skink
- White Abalone
- White Cave Velvet Worm
- White Cockatoo
- White Desert Snail
- White Grouper
- White Madagascar Frog
- White Rhinoceros
- White River Spinedace
- White Saki
- White Sands Pupfish
- White Spotted Sapphire
- White Sturgeon
- White Wartyback Pearlymussel
- White-backed Vulture
- White-banded Tanager
- White-bearded Antshrike
- White-bellied Bushchat
- White-bellied Cinclodes
- White-bellied Frog
- White-bellied Goshawk
- White-bellied Heron
- White-bellied Pitohui
- White-bellied Shortwing
- White-black Treefrog
- White-breasted Babbler
- White-breasted Guineafowl
- White-breasted Mesite
- White-breasted Monarch
- White-breasted Tapaculo
- White-breasted Thrasher
- White-browed Antpitta
- White-browed Bushchat
- White-browed Foliage-gleaner
- White-browed Guan
- White-browed Jungle-flycatcher
- White-browed Nuthatch
- White-browed Tit-spinetail
- White-browed Woodpecker
- White-capped Albatross
- White-cheeked Cotinga
- White-cheeked Crested Gibbon
- White-cheeked Partridge
- White-cheeked Spider Monkey
- White-chested Babbler
- White-chinned Petrel
- White-clawed Crayfish
- White-collared Brown Lemur
- White-collared Fruit Bat
- White-collared Kite
- White-collared Mangabey
- White-crested Guan
- White-crowned Hornbill
- White-crowned Pigeon
- White-eared Marmoset
- White-eared Night-heron
- White-eared Pheasant
- White-eared Pocket Mouse
- White-edge Freshwater Whipray
- White-eyed Gull
- White-eyed Prinia
- White-eyed River-martin
- White-eyed Starling
- White-faced Partridge
- White-faced Starling
- White-footed Dunnart
- White-footed Sportive Lemur
- White-fronted Brown Lemur
- White-fronted Falconet
- White-fronted Langur
- White-fronted Redstart
- White-fronted Scops-owl
- White-fronted Tit
- White-fronted Wattle-eye
- White-headed Duck
- White-headed Fruit-dove
- White-headed Langur
- White-headed Robin-chat
- White-headed Steamerduck
- White-headed Vulture
- White-lipped Deer
- White-lipped Peccary
- White-lipped Peeping Frog
- White-lored Warbler
- White-mantled Barbet
- White-masked Antbird
- White-naped Crane
- White-naped Lory
- White-naped Pigeon
- White-naped Tit
- White-necked Babbler
- White-necked Crow
- White-necked Hawk
- White-necked Parakeet
- White-necked Petrel
- White-necked Rockfowl
- White-necklaced Partridge
- White-nosed Saki
- White-rumped Falconet
- White-rumped Vulture
- White-shouldered Ibis
- White-sided Jackrabbit
- White-speckled Laughingthrush
- White-spotted Dogfish
- White-spotted Guitarfish
- White-spotted Madagascar Frog
- White-spotted Salamander
- White-striped Flathead Toad
- White-striped Forest-rail
- White-striped Reed Frog
- White-tailed Deer
- White-tailed Hummingbird
- White-tailed Laurel Pigeon
- White-tailed Monarch
- White-tailed Mouse
- White-tailed Sabrewing
- White-tailed Shrike-tyrant
- White-tailed Swallow
- White-tailed Warbler
- White-tailed Wattled Pheasant
- White-thighed Colobus
- White-thighed Surili
- White-throated Barbtail
- White-throated Bushchat
- White-throated Flowerpecker
- White-throated Grasswren
- White-throated Ground-dove
- White-throated Guenon
- White-throated Jay
- White-throated Jungle Flycatcher
- White-throated Mountain-babbler
- White-throated Storm-petrel
- White-tipped Monarch
- White-tipped Tuft-tailed Rat
- White-winged Apalis
- White-winged Collared-dove
- White-winged Cotinga
- White-winged Cuckooshrike
- White-winged Fantail
- White-winged Flufftail
- White-winged Guan
- White-winged Nightjar
- White-winged Warbler
- White-winged Wood Duck
- Whitebelly Egg Frog
- Whitebelly Stream Toad
- Whitecheek Shark
- Whitedotted Skate
- Whitefin Tope Shark
- Whitehead's Borneo Frog
- Whitehead's Spiny Rat
- Whitehead's Trogon
- Whitelined Toadfish
- Whitespotted Toadfish
- Whitish Catshark
- Whooping Crane
- Widemouth Blindcat
- Widenose Guitarfish
- Wied's Black-tufted-ear Marmoset
- Wied's Tyrant-manakin
- Wiegmann's Tree Lizard
- Wiens' Water Frog
- Wightman's Robber Frog
- Wijaya's Scissortail Clubtail
- Wild Asian Buffalo
- Wild Common Carp
- Wild Goat
- Wild Yak
- Wild's Egg Frog
- Wilken's Stenasellid
- Williams Bright-eyed Frog
- Williamson Creek Freshwater Snail
- Wilmot Freshwater Snail
- Wilson's Bird-of-paradise
- Wimmer's Shrew
- Windbalea viride
- Winged Mapleleaf
- Winter Climbing Salamander
- Wisconsin Well Amphipod
- Wissel Lakes Treefrog
- Wolterstorffina chirioi
- Wolverine
- Wondiwoi Tree-kangaroo
- Wood River Sculpin
- Wood Snipe
- Wood Sprite Gracile Mouse Opossum
- Wood Stork
- Wood Turtle
- Woodbush Legless Skink
- Woodford's Rail
- Woodland Caribou
- Woodland Oldfield Mouse
- Woodlark Cuscus
- Woodville Cave Crayfish
- Woolly Spider Monkey
- Worcester's Bubble-nest Frog
- Worthen's Sparrow
- Woundfin
- Wreathed Cactus Snail
- Wright's Skink
- Wrinkle Coral
- Wrinkled Hornbill
- Wrinkled Madagascar Frog
- Writhed Hornbill
- Wrybill
- Wuchuan Odorous Frog
- Wushan Salamander
- Wutai Crab
- Wuzhi Shan Odorous Frog
- Wynaad Bubble-nest Frog
- Wyoming Toad
- Xantus's Murrelet
- Xenosaurus grandis
- Xenotilapia burtoni
- Xerosecta giustii
- Xinjiang Ground-jay
- Xolocalca Bromeliad Salamander
- Xyrichtys virens
- Xystichromis sp. nov. 'Kyoga flameback'
- Yalartza
- Yalden's Desmomys
- Yalobusha Riverlet Crayfish
- Yamur Lake Grunter
- Yanachaga Toad
- Yanbaru Whiskered Bat
- Yang's Salamander
- Yangmingshan Crab
- Yaoshan Flying Frog
- Yaounde Reed Frog
- Yap Flying Fox
- Yap Monarch
- Yap Olive White-eye
- Yapen Rat
- Yapo River Frog
- Yaqui Chub
- Yaqui Slider
- Yaqui Sucker
- Yarey Robber Frog
- Yarkand Hare
- Yarra Pygmy Perch
- Yarrow's Blue-spotted Spiny Lizard
- Yelkouan Shearwater
- Yellow Blossom Pearlymussel
- Yellow Blotched Sawback
- Yellow Bromeliad Frog
- Yellow Cardinal
- Yellow Cave Frog
- Yellow Isthmus Rat
- Yellow Kite Swallowtail
- Yellow Lampmussel
- Yellow Mantella
- Yellow Monitor
- Yellow Presba
- Yellow River Frog
- Yellow Spotted Newt
- Yellow Tit
- Yellow Weaver
- Yellow-bearded Greenbul
- Yellow-bellied Sunbird-asity
- Yellow-belly Climbing Salamander
- Yellow-billed Amazon
- Yellow-billed Cotinga
- Yellow-billed Nuthatch
- Yellow-Blotched Palm Pit Viper
- Yellow-breasted Bird-of-paradise
- Yellow-breasted Bunting
- Yellow-breasted Pipit
- Yellow-breasted Tailorbird
- Yellow-browed Toucanet
- Yellow-casqued Wattled Hornbill
- Yellow-cheeked Gibbon
- Yellow-crested Cockatoo
- Yellow-crested Helmet-shrike
- Yellow-crowned Barbet
- Yellow-crowned Butterflyfish
- Yellow-crowned Parakeet
- Yellow-eared Bulbul
- Yellow-eared Parrot
- Yellow-eyed Penguin
- Yellow-eyed Starling
- Yellow-faced Amazon
- Yellow-faced Parrotlet
- Yellow-faced Siskin
- Yellow-footed Rock Wallaby
- Yellow-green Bush-tanager
- Yellow-green Finch
- Yellow-headed Box Turtle
- Yellow-headed Brush-finch
- Yellow-headed Manakin
- Yellow-headed Parrot
- Yellow-headed Temple Turtle
- Yellow-knobbed Curassow
- Yellow-legged Climbing Salamander
- Yellow-legged Pigeon
- Yellow-legged Tinamou
- Yellow-legged Weaver
- Yellow-Lined Centipede Snake
- Yellow-margined Box Turtle
- Yellow-rumped Antwren
- Yellow-rumped Honeyguide
- Yellow-shouldered Amazon
- Yellow-shouldered Blackbird
- Yellow-sided Clubtail
- Yellow-spotted Andes Frog
- Yellow-spotted Salamander
- Yellow-spotted Tree Frog
- Yellow-tailed Woolly Monkey
- Yellow-throated Apalis
- Yellow-throated Bulbul
- Yellow-throated Hanging-parrot
- Yellow-throated Seedeater
- Yellowback Spiny-tailed Iguana
- Yellowback Stingaree
- Yellowbelly Voiceless Treefrog
- Yellowcheek Darter
- Yellowfin Grouper
- Yellowfin Hind
- Yellowfin Madtom
- Yellowhead
- Yellowish Imperial-pigeon
- Yellowish-breasted Racquet-tail
- Yellowtail Flounder
- Yemen Accentor
- Yemen Thrush
- Yemen Warbler
- Yenyuan Stream Salamander
- Yetla False Brook Salamander
- Yinggeling Flying Frog
- Yinnietharra Rock Dragon
- Yiwu Salamander
- Yonenaga's Atlantic Spiny-rat
- Yoro Salamander
- Yosemite Toad
- Yssichromis sp. nov. 'argens'
- Yucatan Brown Brocket Deer
- Yucatan Spiny-tailed Iguana
- Yucatan Wren
- Yuma Robber Frog
- Yuman Desert Fringe-toed Lizard
- Yunnan Asian Frog
- Yunnan Flying Frog
- Yunnan Lazy Toad
- Yunnan Nuthatch
- Yunnan Snub-nosed Monkey
- Yunnan Spiny Frog
- Yunnanfu Frog
- Yunnanilus discoloris
- Yunnanilus macrogaster
- Yunnanilus niger
- Yunnanilus nigromaculatus
- Yuruani-tepui Treefrog
- Zacate Blanco Treefrog
- Zambian Barbet
- Zambian Mole Rat
- Zamboanga Bulbul
- Zanzibar Guitarfish
- Zanzibar Red Colobus Monkey
- Zanzibar Suni
- Zapahuira Water Frog
- Zapata Rail
- Zapata Wren
- Zaprochilus ninae
- Zarciadero Web-footed Salamander
- Zayante Band-winged Grasshopper
- Ze Concept Of Crab
- Zebra Duiker
- Zebra Forest Treefrog
- Zelebor's Nicobar Rat
- Zempoaltepec Vole
- Zerene Fritillary
- Zerynthia caucasica
- Zetek's Treefrog
- Zetides Swallowtail
- Zeus' Robber Frog
- Zhou's Box Turtle
- Ziama Horseshoe Bat
- Zilchogyra paulistana
- Zimbabwe Big-fingered Frog
- Zingel asper
- Zingis radiolata
- Zoe Waterfall Damsel
- Zonetail Butterfly Ray
- Zonitoides jaccetanicus
- Zonocypretta kalimna
- Zorro Bubble-nest Frog
- Zospeum biscaiense
- Zubovskia banatica
- Zug's Robber Frog
- Zulia Toad Headed Sideneck
- Zullich's Blue
- Zululand Black Millipede
- Zuniga's Dark Rice Rat
Advertisement
Add Comment
Please, Sign In to add comment