| family Unionidae 
 
 freshwater mussels found worldwide
 • Syn:
 Unionidae
 • Hypernyms:
 mollusk family
 • Member Holonyms:
 Bivalvia, class Bivalvia, Lamellibranchia, class Lamellibranchia, class Pelecypoda
 • Member Meronyms:
 Unio, genus Unio, Anodonta, genus Anodonta, Dreissena, genus Dreissena
 
 
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