Octopus, slugs, shells

Grey Mail-shell
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Chitons

2 species

Spiny File Clam
European Flat Oyster
Blue Mussel
Northern Quahog

Clams, oysters, mussels

Bivalves

22 species

Common Octopus
Common Bobtail
Dwarf Bobtail
Atlantic Longarm Octopus

Octopus, cuttlefish, squids

Cephalopods

8 species

Atlantic Triton Snail
Banded Dye-murex
European Painted Top Shell
Four-lined Polycera

Snails, nudibranchs, whelks

Gastropods

48 species