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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 | Unioninae | Unionini | Unionina | Unio crassus

nominal species Unio lepidulus Drouët, 1898

Unio lepidulus Drouët, 1898 = Unio crassus

Drouët, 1898. Mém. Acad. Sci. Dijon ??: 60, pl. 1, fig. 7.

= Unio crassus

Taxonomic Opinions

+ Unio mancus var. elongatulus Mühlfeld — Germain, 1931

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