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Taxonomy

all genera

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness of
freshwater mussels
by Taxonomy


Species & Genus Richness of
freshwater bivalves
by Family

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

East Asia

Australasia


Species Richness & Endemism of
freshwater mussels
by Geography


Data last updated
Wed 04 February 2026

Bivalvia | ... | Unionidae | Ambleminae | Quadrulini | Quadrulina | Quadrula quadrula

nominal species Unio asperimus Ravenel, 1834

Unio asperimus Ravenel, 1834 = Quadrula quadrula

‘Lea’ Ravenel, 1834. Cat. Rec. Shells: 5.
(error for Unio asperrimus Lea, 1831)

= Quadrula quadrula

Taxonomic Opinions
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