A marine bivalve mollusc that bores into hard substrates such as chalk or wood on the lower shore in shallow waters; lives in a hollowed-out chamber in the substrate; takes in water by means of long siphons. (Class: Pelecypoda.)
| iPiddock | ||||||||||||||
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Members of Pholadidae, or piddocks, are a type of mollusk similar to a clam;
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