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MUSSELpdb

Introduction

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Taxonomy

all genera

Summary

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
Thu 19 March 2026

Bivalvia

nominal species Unio orthonotus Conrad, 1839

Unio orthonotus Conrad, 1839 = nomen dubium

Conrad, 1839. N.Y. State Geol. Surv. Ann. Rept. (3): 66.

Taxonomic Opinions

= Unio orthonotus Conrad — Henderson, 1935: 72.

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