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!

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Unionoida | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Eurynia dilatata

nominal species Unio gibbosus var. armathwaitensis B.H. Wright, 1898

B.H. Wright, 1898, Nautilus 11(11): 123.
(intro'd as intra-sp. of Unio gibbosus Barnes, 1823)
Type(s): LECTOTYPE USNM_150523, Armathwaite, Fentress Co., Tenn.

= Eurynia dilatata

Taxonomic Opinions

+ Elliptio dilatata (Rafinesque, 1820) — Watters et al., 2009
+ Elliptio dilatata (Rafinesque, 1820) — Williams et al., 2008
+ Elliptio dilatata (Rafinesque, 1820) — Parmalee & Bogan, 1998
= Elliptio (Eurynia) nasutus armathwaitensis (Wright, B.H., 1898) — Haas, 1969
= Elliptio (Eurynaia [sic]) dilatatus-armathwaitensis (Wright, B.H., 1898) — Frierson, 1927
= Unio (sec. Elliptio) gibbosus var. armathwaitensis Wright, B.H., 1898 — Simpson, 1914
= Unio (sec. Elliptio) gibbosus var. armathwaitensis Wright, B.H., 1898 — Simpson, 1900

Page updated: 08:32:13 Tue 01 Jul 2025