Unionida
Order of bivalves / From Wikipedia, the free encyclopedia
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Unionida is a monophyletic order of freshwater mussels, aquatic bivalve molluscs.[1][2][3] The order includes most of the larger freshwater mussels, including the freshwater pearl mussels. The most common families are the Unionidae and the Margaritiferidae. All have in common a larval stage that is temporarily parasitic on fish, nacreous shells, high in organic matter, that may crack upon drying out, and siphons too short to permit the animal to live deeply buried in sediment.
Quick Facts Scientific classification, Families ...
Unionida | |
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A live individual of Anodonta anatina, the duck mussel | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Subterclass: | Palaeoheterodonta |
Order: | Unionida Stoliczka, 1871 |
Families | |
See text |
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