01 n. pl. One of the classes of Mollusca, of great extent. It includes most of the marine spiral shells, and the land and fresh-water snails. They ge…
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One of the classes of Mollusca, of great extent. It includes most of the marine spiral shells, and the land and fresh-water snails. They generally creep by means of a flat, muscular disk, or foot, on the ventral side of the body. The head usually bears one or two pairs of tentacles. See Mollusca.(Zool.) See: Mollusca