MUSSELp

MUSSELpdb

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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
Thu 1 January 2026

Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Quadrulini | Megalonaias nervosa

nominal species Unio eighti Paetel, 1890

Unio eighti Paetel, 1890 = Megalonaias nervosa

‘Lea’ Paetel, 1890. Cat. Conch.-Samml. 3: 151.
(error for Unio eightsii Lea, 1860)

= Megalonaias nervosa

Taxonomic Opinions

+ Megalonaias nervosa (Rafinesque, 1820) — Watters et al., 2009

+ Megalonaias nervosa (Rafinesque, 1820) — Parmalee & Bogan, 1998

+ Quadrula (sec. Crenodonta) heros (Say, 1829) — Simpson, 1914

+ Quadrula (sec. Crenodonta) heros (Say, 1829) — Simpson, 1900

+ Unio (Plectomerus) eightsii I. Lea, 1860 — Fischer & Crosse, 1894

 
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