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d'basing
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Unionidae
Margaritiferidae
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Species & Genus Richness offreshwater musselsby Taxonomy
Species & Genus Richness offreshwater bivalves by Family
Summary
North America
Central America
South America
Afrotropics
North Eurasia
East Asia
Australasia
Species Richness & Endemism offreshwater mussels by Geography
Data last updated Thu 22 January 2026
Bivalvia
2 families
Sars, 1878. Mollusca Regionis Arcticae Norvegiae: 65.Type genus: Cyamium Philippi, 1845 = Cyamium
Hedley, 1916. unknown publication: ??.Type genus: Gaimardia Gould, 1852 = Gaimardia