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Unionidae
Margaritiferidae
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Species & Genus Richness offreshwater musselsby Taxonomy
Species & Genus Richness offreshwater bivalves by Family
North America
Central America
South America
Afrotropics
North Eurasia
East Asia
Australasia
Species Richness & Endemism offreshwater mussels by Geography
Data last updated Mon 2 March 2026
Bivalvia
Prime, 1870. Amer. J. Conch. 5: 152. [nomen nudum]
+ — Burch, 1975: 45.
= Sphærium cooperianum Prime, in litt. — Prime, 1870: 152.