MUSSELpdb

Introduction

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d'basing

Taxonomy

all genera

Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae

Species & Genus Richness by
Taxonomy

Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

East Asia

Australasia

Species Richness & Endemism by
Geography

Data last updated
Mon 1 Dec 2025

nominal species Toxolasma cinerescens Rafinesque, 1831

= nomen dubium

Taxonomic Opinions

+ — Burch, 1975

+ — Simpson, 1914

+ — Simpson, 1900

+ — Lea, 1870

+ — Lea, 1852

+ — Lea, 1836

= Unio cinerescens Raf. — Ferussac, 1835

= Toxolasma cinerescens Rafinesque, 1831 — Rafinesque, 1831