| WHELK | Carnivorous marine gastropod mollusc of the family Buccinidae |
| COWRIE | A marine gastropod mollusc of the family Cypraeidae, with a glossy brightly-marked shell with an elongated opening |
| ABALONE | Marine gastropod mollusc of the genus Haliotis (7) |
| SNAIL | Any spiral-shelled gastropod mollusc of the family Helicidae, especially the common Cornu aspersum (formerly Helix aspersa) (5) |
| TEREDO | Genus of marine bivalve molluscs of the family Teredinidae known as the shipworms (6) |
| EARSHELL | Ormer, mollusc of the family Haliotidae (3-5) |
| COCKLE | A sand-burrowing bivalve mollusc of the family Cardiidae |
| OYSTER | Bivalve mollusc of the family Ostreidae, eaten as a delicacy (6) |
| CEPHALOPOD | Any marine mollusc of the class that includes the octopus, squid, cuttlefish and nautilus (10) |
| CONCH | Tropical marine mollusc of the genus Strombus (5) |
| RAZORFISH | Bivalve mollusc of the genus Solen (9) |
| CUTTLEFISH | Mollusc of the genus Sepia (10) |
| BIVALVE | A mollusc of the class Pelecypoda, which includes clams, cockles, oysters and mussels |
| RAZORCLAM | Any of various sand-burrowing bivalve molluscs of the genera Ensis or Siliqua, such as Siliqua patula |
| SHARKS | Carnivorous marine predators (6) |
| NEREIS | Carnivorous marine animals |
| NEEDLEFISH | Carnivorous marine creature |
| ORMER | Edible marine gastropod mollusc occurring near the Channel Islands (Haliotis tuberculata); the sea-ear (5) |
| SEAEAR | Another name for the ormer, an edible marine gastropod mollusc (3,3) |
| PIPI | Either of two edible marine bivalve molluscs of Australia and New Zealand (4) |
