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 | Quadrulini | Uniomerus tetralasmus

nominal species Unio rivularis Conrad, 1853

‘Say’ Conrad, 1836, Monogr. Fam. Unionidae 1(5): 45, pl. 23, fig. 1 [as ‘U. declivis’].
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 257.
Conrad, 1854, Jour. Acad. Nat. Sci. 2(4): 296.
Type(s): HOLOTYPE ANSP_42852, small creek in Greene Co., Ala.

= Uniomerus tetralasmus

Taxonomic Opinions

+ Uniomerus tetralasmus (Say, 1831) — Watters et al., 2009
+ Uniomerus tetralasmus (Say, 1830) — Williams et al., 2008
+ Uniomerus tetralasmus (Say, 1830) — Parmalee & Bogan, 1998
+ Uniomerus tetralasmus (Say, 1830) — Burch, 1975
+ Uniomerus tetralasmus (Say, 1831) — R.I. Johnson, 1972
+ Uniomerus tetralasmus (Say, 1831) — R.I. Johnson, 1970
+ Uniomerus obesus (Lea, 1831) — Haas, 1969
+ Uniomerus obesus (Lea, 1831) — Clench & Turner, 1956
+ Elliptio (Uniomerus) obesus (Lea, 1831) — Frierson, 1927
+ Unio (sec. Uniomerus) obesus Lea, 1831 — Simpson, 1914
+ Unio (sec. Uniomerus) obesus Lea, 1831 — Simpson, 1900
= Unio (Uniomerus) rivularis Conrad, 1853 — Conrad, 1853

Page updated: 08:20:40 Tue 01 Jul 2025