$ apt-cache search linux-image
linux-headers-3.16.0-4-amd64 - Header files for Linux 3.16.0-4-amd64
linux-image-3.16.0-4-amd64 - Linux 3.16 for 64-bit PCs
linux-image-3.16.0-4-amd64-dbg - Debugging symbols for Linux 3.16.0-4-amd64
linux-image-amd64 - Linux for 64-bit PCs (meta-package)
linux-image-amd64-dbg - Debugging symbols for Linux amd64 configuration (meta-package)
linux-headers-4.9.0-0.bpo.4-amd64 - Header files for Linux 4.9.0-0.bpo.4-amd64
linux-headers-4.9.0-0.bpo.4-rt-amd64 - Header files for Linux 4.9.0-0.bpo.4-rt-amd64
linux-headers-4.9.0-0.bpo.5-amd64 - Header files for Linux 4.9.0-0.bpo.5-amd64
linux-headers-4.9.0-0.bpo.5-rt-amd64 - Header files for Linux 4.9.0-0.bpo.5-rt-amd64
linux-image-4.9.0-0.bpo.4-amd64 - Linux 4.9 for 64-bit PCs
linux-image-4.9.0-0.bpo.4-amd64-dbg - Debug symbols for linux-image-4.9.0-0.bpo.4-amd64
linux-image-4.9.0-0.bpo.4-rt-amd64 - Linux 4.9 for 64-bit PCs, PREEMPT_RT
linux-image-4.9.0-0.bpo.4-rt-amd64-dbg - Debug symbols for linux-image-4.9.0-0.bpo.4-rt-amd64
linux-image-4.9.0-0.bpo.5-amd64 - Linux 4.9 for 64-bit PCs
linux-image-4.9.0-0.bpo.5-amd64-dbg - Debug symbols for linux-image-4.9.0-0.bpo.5-amd64
linux-image-4.9.0-0.bpo.5-rt-amd64 - Linux 4.9 for 64-bit PCs, PREEMPT_RT
linux-image-4.9.0-0.bpo.5-rt-amd64-dbg - Debug symbols for linux-image-4.9.0-0.bpo.5-rt-amd64
linux-headers-4.9.0-2-grsec-amd64 - Header files for Linux 4.9.0-2-grsec-amd64
linux-image-4.9.0-2-grsec-amd64 - Linux 4.9 for 64-bit PCs, Grsecurity protection
linux-image-grsec-amd64 - Linux image meta-package, grsec featureset
linux-image-rt-amd64 - Linux for 64-bit PCs (meta-package), PREEMPT_RT
linux-image-rt-amd64-dbg - Debugging symbols for Linux rt-amd64 configuration (meta-package)
linux-image-4.9.0-0.bpo.2-amd64 - Linux 4.9 for 64-bit PCs (signed)
linux-image-4.9.0-0.bpo.2-rt-amd64 - Linux 4.9 for 64-bit PCs, PREEMPT_RT (signed)