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| pelecypods (Pelecypoda; any marine or freshwater mollusc of the class Pelecypoda [formerly Bivalvia or Lamellibranchia], having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration; the group includes clams, cockles, oysters, and mussels) | |||
| pelecypoda | |||
| pelecypods (Pelecypoda) | |||