Note: combat commands that have a "!" on them meant that it was an instant defeat if it worked, Combat commands with a "*" on it meant it was an instant escape if it worked, feel free to disregard this if you wish.

SHARKS

Helixiocephalus Carchariea – A shark with a completely unique in nature jaw.
Unique jaw - +50 to all bite actions.
Unusual shape – Helixiocephalus’s jaw is shaped like 3 interlocking dna strands, which twist together into a 3-wheels-near-each-other shape when closed. It is a slow swimmer due to the size and complexity of its head.
Combat commands: Bite, Ram, Tail

Matchlockenses Carchariea – A small, fast, vicious shark.
Swarming – Matchlockenses swarms like piranhas when they attack, in schools of up to 500.
Size limitation – Matchlockenses is only about the size of an average adult human’s forearm.
Combat commands: Swarm, Bite, Ram, Tail

Duodentodon Carchariea – A very big, very fast great white like shark. It’s teeth are the main difference between it and a normal great white.
Teeth – Duodentodon’s teeth are spiral-bit shaped pairs, 1 in front, 1 in back, each tooth socket holding 2 teeth of extreme sharpness. Bite actions roll 2 dice instead of 1.
Food needs – Duodentodon adults need a large amount of food to survive.
Combat commands: Bite, Ram, Tail, Thrash

Saturnopinnicus Pelagicae – A total-darkness-waters shark with fins shaped like 3 interconnected hula-hoops each. The name literally means ‘Saturn’s Fin Total-darkness-fish’, since the fins look similar to the rings of Saturn.
Flexing - +90 to charging attacks, ambush attacks, and escape-sprints.
Pelagic – The environment of total-darkness-waters has stunted your evolution, your natural evolutionary rate is nil, so all evolutions must be bought with points.
Combat commands: Ram, Charge, Sprint, Bite, Sudden-bite

Macrodentodontis Carchariea – The biggest shark to have yet lived. Adults are ~69 ft.
The ultimate – Nearly-all prey targets suffer an instant defeat after a single bite.
Size matters – Macrodentodontis is unable to hide due to its size, and unable to pursue into most caves or other tight quarters areas.
Combat commands: Bite!, Tail, Ram, Display Aggression: Sudden Yawn, Thrash

Circumspectero Pelagicae – A total-darkness & freezing-temp polar-seas shark. Its name comes from its long, narrow blunt nose, which tapers to a t-head shape at the tip.
Effortless hunt – Circumspectero diet consists marine snow & sea-bed carcasses. Hunting takes an action but not a roll.
Pelagic – The total-darkness & freezing temp waters of your home discourage evolution, your evolutionary rate is not nil, but it is less than 1%, and most evolution will be by spending points.
Combat commands: Tail, Bite, Sideswipe, Carrion-barf

Cernerognathis Carchariea – Filter feeding shark of large size which physically resembles mega-mouth.
Effortless feed – Cernerognathis uses a baleen like sieve in its throat to inhale water, strain out the edible bits and pieces, and then expel the water through its gills. Finding food is effortless and doesn’t require a roll, but does use an action.
No bite – Cernerognathis doesn’t have teeth whatsoever, and cannot use biting to fight.
Combat commands: Tail, Ram, Sideswipe

Aerochasmos Carchariea – A small, shallow-water shark with a ‘snorkel’ like growth on its head.
Air – Aerochasmos’s head-growth can inhale air & can open/close, Aerochasmos starts already capable of breathing atmospheric air (that is, air that is not taken in from water the creature is inhaling). Of note, it can also breath water via its more normal shark gills.
Drag - -12 to all pursuit, escape, and sprinting actions.
Missing link – Sharks / Amphibians, some mutations are regularly taken from Amphibian
Combat commands: Bite, Ram, Tail, Display Aggression: Sudden Yawn

Flintlockensus Carchariea – An orca-like shark with an extremely fast bite-speed.
Fastest in history: Bite speed – Biting attacks can’t be dodged, but can miss.
Food needs – Flintlockensus needs a lot of food to have a very big population.
Combat Commands: Bite, Ram, Tail, Intimidate, Thrash

Salabsenia Carchariea – a fresh water bottom swimmer shark with a long skinny nose that comes to a point.
The nose - +80 to find food actions.
Freshwater – Salabssensia can’t enter salt water until this is evolved away.
Combat Commands: Bite, Tail, Fin

FISH

Osloricanensis Icythi – A fish named for its ‘full-plate-armor’ resembling scales.
Defense - +80 to all defense actions.
Sluggish - -16 on pursuit, dodge, sprint, and escape.
Combat commands: Bite, Clobber, Thrash

Cardiarrestichthys Pelagiaster – A total-darkness oil-black fish with a heart-stop-inflicting poison in its fins and fangs.
Heart attack – Fin and Fang attacks have a significant chance of causing instant heart-attack in a prey target.
Size – Cardiarresticthys is roughly the size of an adult human’s pointer finger.
Combat commands: Bite! Fin!

Tractognathis Luminicthyiae – Physically resembling both a stone fish and an angler-fish, and having a light-emitting lure limb.
Swallow – Tractognathis uses a specialized gill and organ to suddenly inhale so much water so fast that surprise attacks on things smaller than tractognathis are usually instant-swallow fatalities.
Light – -14 to all hiding actions.
Combat commands: Bite, Swallow!, Hide, Lure,  Surprise: Swallow!

Regicthos Gigantium – A really huge codfish like fish with horns on its head shaped similarly to a points-bearing crown.
Display – Mating is effortless and doesn’t require a roll, but does require an action.
Drag - -4 on all pursuit, escape, and sprint actions.
Combat commands: Clobber, Bite

Stellocculus Calci – A fish with completely unique eyes, the fish gets its name for its eye shape and also for its ‘strange blob of whitish mud that looks like an eel, sort of’ appearance.
Unique – Stellocculus’s pupils are shaped like 5 pointed stars, it is completely impossible to surprise attack one without conditions playing a direct and significant role in the surprise attack (such as coming out of a cloud of ink or some other full-denial-of-sight condition).
 Salt – Stellocculus cannot live without salt, and cannot visit fresh water zones without evolving this disadvantage away.
Combat commands: Bite, Squeeze, Display aggression: Watch target

Polydorsus Icthi – A fish with 3 wide wing like fins that allows it to fly/glide distances via leaping out of water.
Flight – Polydorsus’s maximum projected possible flight path jumping from high point to low is ~217 ft.
Escaper – Combat avoidance is your main survival technique until you evolve weaponry, though the big wing fins have a sharp non-poisonous point.
Missing link – Fish / Birds – Some mutations are regularly taken from Bird group
Combat commands: Bite, Fin, Leap

Daedalousicthynius – An unusual underwater-caves fish who’s bone structure is more like that of an octopus, effectively nil.
Fitting – Daedalousicthynius can squeeze through areas totaling not less than 1/16th its total body size, and can do this without penalty.
Cave needs – Underwater caves are used in the breeding process. Breeding can’t occur without them.
Missing link – Cephalopods / Fish, mutations are sometimes drawn from the cephalopod trait-group.
Combat commands: Bite, Clobber

Revulsicthyniae Muscosi – A total-darkness & freezing temp polar seas hagfish that grows up to 37 feet long.
Effortless hunt – Revulsicthyniae’s diet consists of marine snow & sea-bed carcasses. Hunting doesn’t use a roll, but does use an action.
Sweat – Revulsicthyniae Mucosi, literally ‘snotty revolting fish’, sweats out puss and other indigestible corpse fluids continuously-and-slowly, it is paradoxically easy for predators to find, yet almost never eaten.
Combat commands: Sweat-shed, Clobber, Carrion-barf

Abyssognathis Longiformiae – a nearly 7 foot long creature with a huge mouth, it resembles a gulper eel but its body is rusty colored and bumpy, instead of black and oily-flat. It gets its name because it’s mouth is so hilariously big that it looks like a fish caricature.
Surprise master – Abyssognathis can sit so still for so long that algae and other things can grow on it without harming it. If it is sitting completely still, it gets a +80 to avoiding notice or surprise attacking.
Drag – Abyssognathis’s big mouth makes it slower than usual, -10 to escape, pursuit, and flee, -5 to dodge.
Combat commands: Bite, Tail, Swallow!

Calciseptisicthia Obscurensus – a stonefish that averages ~23 pounds, hiding in sand and covered in sand-tone ridges, bumps, and spikes.
Burrowing  – Calcisetisicthia hides itself in soft sand-consistency material effortlessly, and has a colorful ‘lure’ limb that lures unsuspecting prey towards it by glowing softly.
Lure – it is impossible to hide unless you burrow due to the lure’s slow constant light emission.
Combat Commands: Surprise Attack, Fin, Bite, Burrow*

WHALES

Therocetis Ceti – A meat eating whale with a ‘snapping turtle’ like head, beak, eyes, and facial appearance, but otherwise fundamentally similar to a sperm whale.
The snapper – Nearly all bite attacks maim, disembowel, discombobulate, amputate, decapitate, or split-in-half, if a target is smaller than therocetis.
Beak – Therocetis doesn’t have teeth, and its beak takes years to grow back, most therocetis ceti don’t survive losing the beak’s ability to bite.
Combat commands: Bite!, Clobber, Fin, Tail, Display Aggression: Sudden Yawn

Azulocephalus Ceti – Noted for its distinct ‘fin-flopped-over-itself-twice’ scalp shape and unusual blue color of its forehead, but fundamentally a baleen whale.
Display – Mating is effortless, and doesn’t cost a roll, but does cost an action.
Toothless – Azulocephalus is a filter feeder, it can’t use biting to fight.
Combat commands: Clobber, Fin, Tail, Ram

Dorsoduotis Cetiastus -  A meat eating whale with a completely unique in nature spine.
Spine – Dorsoduotis has 2 interlocking spines which resemble a twisted reed in appearance, inflicting a successful spine-break on one without extreme, massive force, is simply not possible.
Age debility – Dorsoduotis’s spine begins to form painful knots that limit the creatures activities, starting this only when a specific individual has lived 90% of its total possible lifespan.
Combat commands: Clobber, Ram, Fin, Tail, sideswipe

Gladiomandibulus Ceti – A baleen eating whale despite it having 4 absolutely gigantic teeth, the teeth are used only for defending itself, and don’t feature in its hunting.
The tooth - +65 to all self defense actions, +20 to mating, and +12 to intimidation. Each tooth is nearly 16 feet long.
Deficit Diet – Gladiomandibulus’s diet makes it such that the teeth, if they were to somehow get broken, take months if not years to grow back.
Combat commands: Clobber, Rip/Tear, Fin, Tail, Ram, Display Aggression: Wiggle head right/left

Augurocephalus Cetiasti – A near-surface polar-seas whale with a fighting horn. Augurocephalus is roughly 6 feet long.
Pinniped – Despite being a meat eating whale, Augurocephalus has a seal-like body with 4 large fins which can be used to flip and flop about on land.
Deficit growth – The horn grows so slowly it effectively doesn’t grow back if it is broken, and most Augurocephalus Cetiasti do not survive losing their horn.
Missing link: Whales / Pinnipeds, mutations are sometimes drawn from the pinniped group of traits.
Combat commands: Stab, Fin, Tail, Bite

Megalocephicus Cetinae – Literally ‘very-big-head whale’, Megalocephicus is noted for its ‘lumpy blob of bread dough’ shaped scalp and its large overhanging forehead, and is a baleen whale.
The head – The big ‘lumps’ on megalocephicus’s head are bone matter. +75 to damage from headbutt.
Sluggish – Megalocephicus is slower than the usual whale due to its big head.
Combat commands: Ram, Fin, Tail, Head-butt, Sudden-breach*

Pelagiceti Ceti – A total-darkness-waters deep diving whale, Pelagiceti is known for being able to hold its breath for 12-16 hours, and is a light gray in color meat eating whale with a toothy jaw.
Diving – There is no depth you cannot dive to and swim around in.
Deficit combat – While your bite and fin strike are strong, you don’t really have any other weapons, so combat avoidance is a major survival strategy.
Combat commands: Clobber, Fin, Tail, Bite, Sudden-breach*

Eurydicetinius Cetiasti – A dolphin like relatively small whale roughly the size of an orca, and looking similar, but much more blubbery.
Singing – Signaling with already devised signals is effortless, not requiring a roll, but requiring an action. Making and learning new signals is not effortless, but you will start out with several already present.
Muting – Sufficient damage to the head will rob a Eurydicetinius of its ability to sing.
Calls – “Dive”, “Desire: mate”, “Food here”, “Enemy near”, “baby needs help”, “Macrodentodontis spotted”
Combat commands: Fin, Tail, Bite, Sound-blast!

Convexognathis Horticulturae – a huge but harmless baleen whale with a rounded off bent-arch shaped mouth that opens very wide.
Miracle grow – Biomes you control automatically slowly move towards maximum value version.
Baleen – no biting ability.
Combat commands: Fin, Tail, Clobber, Ram

Opaquaceti Articastriae – A spookishly white and clear whale that is a freezing waters polar omnivore.
Specialized basker – +70 while avoiding notice while basking in polar climate.
Basker – Opaquaceti must spend 1 action basking each 2 turns. This doesn’t require a roll, but does require an action.
Combat commands: Fin, Tail, Bite, Sudden-breach*, Ram

CEPHALOPODS

Longituthis Pankratontis – Named after an ancient form of wrestling, Longituthis is 40 to 60 feet long and is a squid like animal with a conical shell containing all its organs. Longituthis’s tentacles are ~70 ft long.
Natural fighter – Pankratontis gains a +60 to all grappling, striking, and limb-interception actions.
Unwieldy - -10 to turn while moving, stop, and dodge.
Combat commands: Smack, Clobber, Grapple, Squeeze, Bite

Purpurastius Elegens – A bright purple octopus who has a lace-like web. 3 foot whole body.
Ink – Purpurastius’s ink is dark purple and resembles an extremely thick malt vinegar in chemical composition, doing significant acid harm in addition to blotting out sight.
Laced – Your web is laced with tiny holes, some small prey items usually escape.
Combat commands: Ink, Smack, Grapple, Bite

Aranium Magnificens – An octopus with a pyramid shaped head and a very long, dense web. 3 foot tentacles with 4 foot head.
Web – Aranium’s web of skin between limbs is extremely large, strong, and capable of containing 7 times Aranium’s body weight in small prey items.
Drag - -12 to pursuit, escape, and -6 to dodge.
Combat commands: Clobber, Smack, Enclose, Bite

Intelligiaster – Tiny octopus with a big head.
Best in history: brain speed – Intelligiaster gains a +80 to escape, subvert, subterfuge, escape grapple, and split-second decision actions during combat.
Tiny – Intelligiaster is about the size of a mandarin orange, and its tentacles are only 4 inches long.
Combat commands: Bite, Smack

Morpholuxia Elegensus – brightly polka-dotted cuttlefish that is about 8 ft long.
Ink – Morpholuxia’s ink conducts ambient molecular electricity, doing significant shock damage as well as producing a highly random ‘light show’ of visible effects within its blotting-out cloud.
Attraction – Morpholuxia must escape quickly after the ink use, as the light may and sometimes does attract some predators.
Combat commands: Ink, Smack, Grapple, Bite

Dispaterensus Pelagiae – total-darkness-waters octopus which is colors a dead body would turn. A ‘marine snow’ corpse eater. Up to 12 feet wide.
Inedible – Dispaterensus becomes sweaty with indigestible vomit-inducingly disgusting fluids when threatened, intimidated, surprise attacked, or grappled.
Pelagic – Dispaterensus evolution speed is very deficit, it is only 2 percent, most evolution will be bought with points.
Combat commands: Sweat-shed, Clobber, Grapple, Smack, Bite, Squeeze, Carrion-barf

Spongigastria Abyssi – sea bottom squid that eats sponges.
Specialized diet – Spongigastria gains all needed benefits for 1 day of existence in a single bite of sponge that is roughly half the size of a penny.
Size – Spongigastria is only the size of a soda can.
Combat Commands: Smack, Bite

Duodermion – A very huge octopus with a deadly ability to enclose prey items in a full secondary web of skin which the creature vomits out of a mouth like orifice before preying on the prey item. Duodermion grows to be 80 feet.
Sacking – Prey that are successfully grappled and are smaller than duodermion become entangled in a leather sack like body part from which escape is attempted with a -50 penalty unless they have blades or venom, in which case it is a -30 penalty.
Deficit mouth – Duodermion can only eat things it can sack, as its mouth is inside the sacking body part.
Combat commands: Enclose, Smack, Clobber, Squeeze

Vampiphotiaster – An intensely glowing squid which absorbs all light from around itself slowly and continuously, rendering limited light areas totally dark over time.
Flashing – Vampiphotiaster is able to emit a flash of glowing light so intense that it knocks the viewer unconscious unless the viewer is much bigger than vampiphotiaster, or, isn’t looking into the flash.
Deficit hiding – Hiding in full enclosure (cave, large container, etc), is the only workable hiding strategy for Vampiphotiaster.
Combat Commands: Bite, Smack, Grapple, Squeeze, Flash, Display Aggression: Sudden color change

Gorgoni Cephalopodiae – Named for having ‘writhing gorgons hair’ tentacles on its top as well as the more normal tentacles on its bottom. An ~10 ft octopus.
Double tentacles – Tentacle uses roll 2 dice instead of 1.
No poison – G. Cephalopodiae isn’t poisonous or venomous, it simply has a lot of tentacles.
Combat Commands: Bite, Smack, Grapple, Squeeze, Display Aggression: Spin in place & flex tentacles

JELLYFISH

Leopardicae – so called because of its colors resembling leopard-print.
Swamp suit – Leopardicae is well suited to swamp existence, and hiding in murky waters, under swamp plants, and under overhangs gains a +60 bonus.
Fresh – Leopardicae cannot enter salt water until this disadvantage is evolved away.
Combat Commands: Touch, Entangle

Astrorum  - Carries a potent knock-out toxin as well as getting its name from it’s ‘circus’ like pattern of colorful markings which vaguely resembles a star.
Knock out – Astrorum’s poison makes a target suffer a rapidly-approaching coma
Nonfatal – Astrorum’s poison just knocks you unconscious, it doesn’t actually kill you.
Combat Commands: Touch, Entangle

Mortenaster – Dead body eater.
Plaguing – Mortenaster’s touch gives a bubonic plague like syndrome.
Short reach – Mortenaster’s entire body is only 1 foot long.
Combat commands: Touch!

Dementiotenticulus – Insanity causing touch. It’s tentacles can grow to be 40 feet, and its bell can grow to be 8 feet.
Insanity cause – Dementiotenticulus’s tentacles cause steadily mounting insanity in targets they touch or grip.
Non-fatal – Dementiotenticulus’s touch isn’t fatal, just insanity inducing.
Combat commands: Touch, Entangle

Harlequinensus – The most poisonous jellyfish to have yet lived. It gets its name because of its ‘old-timey-clown’ color scheme.
Certain death – The slightest touch insta-fatals things unless they are either much bigger than harlequinensus, or, they are immune for some reason.
Floater – Harlequinensus is a man o war style float-aimlessly-around type jellyfish until evolved away from this model.
Combat commands: Touch!, Entangle

Agrotenticuliae – Touch causes intense, burning, psychosis-inducingly severe pain. Agrotenticuliae is bright orange and has angry, flashy coloration.
The pain – A successful touch results in a prey target having a steadily mounting penalty that eventually reaches -100 out of -100 possible.
Nonfatal – The toxin isn’t actually fatal, just extremely painful, if things escape, they likely live.
Combat commands: Touch, Entangle

Frigidensus Tenticulae – Total-darkness & freezing temp polar sea jellyfish. It gets its name because even in such waters as it lives in, it is so cold that it sheds small amounts of visible ice.
Icy touch – Sufficient number of hits landed results in a prey target freezing to death.
Heat – If Frigidosensus gets too hot, it withers. If it gets much too hot, it dies.
Combat commands: Touch, Entangle

Hadeanensus – Total darkness waters dweller. The biggest jellyfish to have yet lived.
Reach – An adult hadeanensus’s tentacles are ~200 feet long & it’s bell is ~16 ft wide.
Unwieldy – Hadeanensus is big and cumbersome, it takes a -18 to dodge, escape, and pursuit & a -8 to turning mid-motion.
Combat commands: Touch, Entangle, Digest!

Placidianesus Placentaformiae – A no-tentacles ‘big sack’ style jellyfish.
Sacking – P. Placentaformiae’s victims are flooded with neurotoxins while enclosed by it, a steadily increasing penalty to escaping inflicted, gradually going all the way up to -100.
No tentacles – P. Placentaformiae has no tentacles whatsoever.
Combat commands: Enclose, Rub, Digest!

Dyurrniaster – A near-surface jellyfish with senses a normal jellyfish simply doesn’t have.
Senses – Dyurrniaster has sight, touch, and ESP initially.
Deficit poison – Dyurrniaster’s touch isn’t poisonous, simply very painful.
Combat commands: Touch, Entangle, Display Aggression: Tentacle flail
Sentience: Dyurrniaster automatically slowly moves towards sentience when it is present as an NPC species.

ENCHINODERMS

Pluradigitaster – A sea and coast starfish that is roughly 4 feet long, most of its body 8 very long hairy arms.
Sensitivity – Pluradigitaster can predict wave current patterns naturally so well that it can effectively ride these patterns like an underwater kite.
Brittle – Pluradigitaster isn’t really designed for combat, evolution of combat ability is needed.
Combat commands: Bite, Float Away*

Septostomas – A dangerously large star fish with a large toothy mouth at the end of all 7 of its 7 large limbs, Septostomas grows to be ~12 ft wide.
Multibite – A landed grapple does the same damage as seven bites.
Positioning – You don’t have a mouth on your main body, only on your limbs.
Combat commands: Grapple, Bite, Squeeze

Tenebrinoidiae – A total darkness polar seas sea cucumber with slightly glowing long frills growing from its ~19 ft body.
Frills – Deadly poisonous, inflicts a steadily mounting -1 to -100 penalty on anything that touches it for even a moment, this penalty growing steadily and persisting.
Specialized Mouth – No bite capability
Combat Commands: Touch!, Lure, Carrion-Barf, Sand-Barf

Spinolorica – slow moving ~3 ft wide/tall sea urchin with large sawtooth spines covering 90% of its body.
Spines – Any form of bite or grapple reflects 80% of the damage back at the attacker.
Microlimbs – The only limbs you have are tiny limbs that facilitate slow-speed movement.
Combat Commands: Barrel Roll, Spine Flex, Thrash

Regulidigitorum – 12 limbed starfish with 3 long narrow limbs exactly north south east and west, around 4 feet wide and long.
Multi-brain – You have 4 small brains, each one controlling 1 limb group, all your limbs always unerringly co-operate, +60 on all limb using tasks.
Costly – Evolving your internals costs more.
Combat commands: Barrel Roll, Bite, Float away*
Sentience: Regulidigitorum automatically slowly moves towards sentience if it is present as an npc species.

Chromaphylensus – Total darkness sea bed urchin, with green glowing spikes, grows to be ~10 ft wide/tall. Deadly poisonous.
Perfected – Your use of Lure requires a greater than 90 result to avoid.
Visible – Chromaphylensus is always emitting light, forget hiding, it seldom works.
Combat commands: Lure!, Barrel Roll, Spine flex

Acridostellarum – Carrion/Marine snow eating absolutely repulsive starfish that grows ~17 feet long.
Inedible – The tiny hairs on acridostellarum’s body collect bits of the rotting corpses it eats and simply hold them, it is thoroughly inedible and stinks horribly.
Deficit Evolution – The total darkness waters of Acridostellarum’s native habitat retard evolution, Acridostellarum’s natural evolution speed is only 3%.
Combat commands: Thrash, Sweat-shed, Bite, Strike, Carrion-barf

Interfexiradiatus – The largest echinoderm to have yet lived, an 18 limbed starfish like creature. ~62 feet long.
Specialist – +40 to hunt whales, attack whales, and choke whales.
Food needs – Interfexiradiatus needs a large amount of food to have a very large population.
Combat commands: Thrash, Squeeze, Grapple, Float Away*