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!

Search the database pages:

Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Villosa vibex

nominal species Unio gracilior Lea, 1856

Lea, 1856, Proc. Acad. Nat. Sci. 8: 262.
Lea, 1858, Jour. Acad. Nat. Sci. 4 [O. 6]: 56, pl. 8, fig. 38 [as ‘gracillior’].
Type(s): HOLOTYPE USNM_85088, Buckhead Creek, Georgia.

= Villosa vibex

Taxonomic Opinions

+ Villosa vibex (Conrad, 1834) — Bieler, 2021
+ Villosa vibex (Conrad, 1834) — Watters, 2018
+ Villosa vibex (Conrad, 1834) — Parmalee & Bogan, 1998
+ Villosa vibex (Conrad, 1834) — Burch, 1975
+ Villosa vibex (Conrad, 1834) — R.I. Johnson, 1972
+ Villosa vibex (Conrad, 1834) — R.I. Johnson, 1970
= Ligumia gracilior (Lea, 1856) — Haas, 1969
= Lampsilis (Ligumia) gracilior (Lea, 1856) — Frierson, 1927
= Lampsilis (Eurynia) gracilior (Lea, 1856) — Simpson, 1914
= Lampsilis (sec. Eurynia) gracilior Lea — Simpson, 1900
= Unio gracilior Lea — B.H. Wright, 1888
= Margaron (Unio) gracilior (Lea) — Lea, 1870

Page updated: 08:21:15 Tue 01 Jul 2025