Molluscs

Molluscs

Snails, sea-slugs and squid, although very diverse in appearance and habit, all belong to the Phylum Mollusca. Molluscs also include chitons, clams, mussels, tusk shells and octopus. The study of molluscs is called malacology.

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Cephalopods

This group include octopuses, cuttlefishes, squids and nautiluses.

Chitons

Their most distinctive feature is their eight overlapping plates.