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

Publication Pfeiffer et al. (2018): summary

publication summary | cladograms

Full Citation

Pfeiffer, J.M., A.E. Sharpe, N.A. Johnson, K.F. Emery & L.M. Page. 2018. Molecular phylogeny of the Nearctic and Mesoamerican freshwater mussel genus Megalonaias. Hydrobiologia 811: 139-151. Available electronically.

Taxonomic Opinions

Megalonaias nervosa (Rafinesque, 1820) = Megalonaias nickliniana
+ Unio crassus var. giganteus Barnes, 1823
+ Unio heros Say, 1829
+ Unio multiplicatus Lea, 1831
+ Unio nicklinianus Lea, 1834
+ Unio boykinianus Lea, 1840
+ Unio digitatus Morelet, 1851
+ Unio eightsii Lea, 1860
+ Unio triumphans B.H. Wright, 1898
+ Unio (Crenodonta) stolli Martens, 1900

Megalonaias nervosa (Rafinesque, 1820)

Quadrula apiculata = Quadrula quadrula

Uniomerus declivis