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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 Thu 19 March 2026
Gray, J.E. 1856. Description of a new species of Sphærium found near London. Annals and Magazine of Natural History 17 (2nd series): 465-466. Available electronically.
Gray, 1856. Ann. Mag. Nat. Hist. 17: 466.