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 | Popenaiadini | Psoronaias semigranosa

nominal species Unio semigranosus Reeve, 1864

‘Philippi’ Reeve, 1864, Conch. Icon. 16: pl. 10, sp. 36; errata.
(reference to Unio semigranosus Philippi, 1843)
Type(s): FIGURED SPECIMEN BMNH_196496, Mexico.

= Psoronaias semigranosa

Taxonomic Opinions

+ Unio (sec. Elliptio) testudineus Morelet, 1849 — Simpson, 1914
+ Unio (sec. Elliptio) testudineus Morelet, 1849 — Simpson, 1900
+ Unio (Psoronaias) semigranosus var. testudineus Morelet, 1849 — Martens, 1900
+ Unio (Psoronaias) testudineus A. Morelet, 1849 — Fischer & Crosse, 1894

Page updated: 12:12:02 Tue 03 Jun 2025