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The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Publication Pfeiffer et al. (2018): summary
     publication summary | cladograms

Complete 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