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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 | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus
‘Spengler’ Simpson, 1900. Proc. U.S. Nat. Mus. 22: 744.(error for Unio musivus Spengler, 1793)
+ Unio (sec. Lymnium) batavus (Maton & Rackett, 1807) — Simpson, 1914: 569.