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Mollusks

mol' usk, any member of the phylum of invertebrates with a soft body usually protected by a shell, including snails, clams, and octopuses

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About the Phylum Mollusca
The word "Mollusca" comes from the Latin molluscus, or soft. Including such diverse animals as snails, oysters and octopuses, this is one of the most familiar of all the large animal groups.

Class Bivalvia
Class Bivalvia
clams, oysters, etc.

Class Cephalopda
Class Cephalopoda
octopus, squid, etc.

Class Gastropoda
Class Gastropoda
mollusks characterized by the presence of a single shell and a muscular foot, such as snails

The Robinson Library >> Science >> Zoology