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Summary
Unionidae
Margaritiferidae
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Etheriidae
Mycetopodidae
Iridinidae
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 Fri 13 February 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