Mollusca
Most molluscs have shells, but some groups do not: octopods, slugs, and the gastropods known as sea slugs.
Cuttlefish
Regal Sea Goddess (Nudibranch)
Violet Aeolid (Nudibranch)
Common Octopus
European Squid
Spotted Sea Hare
White Spotted Octopus
Pinna Rudis
Triton's Trumpet
Thuridilla
