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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 13 July 2026
Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Euglesa subtruncata
(error for Pisidium marci Sterki, 1909)Ellis, 1962. Synop. Brit. Fauna (13): ??.
+ Pisidium (Cyclocalyx) subtruncatum Malm, 1855 — Burch, 1975: 57.