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 usumasintae

nominal species Unio usumasintae Crosse & Fischer, 1893

Crosse & Fischer, 1893, J. de Conch. 40: 294 [as ‘usumasintæ’].
Fischer & Crosse, 1894, Miss. Sci. Mexique, Rech. Zool. 2(15): 574, pl. 63, fig. 4; pl. 67, fig. 5 [as ‘usumasintæ’].
(renamed Unio usumacintae Martens, 1900)

= Psoronaias usumasintae

Taxonomic Opinions

= Psorula usumasintae (Crosse & Fischer, 1893) — Freeman et al., 2025
= Psoronaias usumasintae (Crosse & Fischer, 1892) — Czaja et al., 2023
= Psoronaias usumasintae (Crosse & Fischer, 1892) — Graf & Cummings, 2021
= Psorula usumasintae — Inoue et al., 2020
= Psorula usumasintae (Crosse & Fischer, 1892) — Pfeiffer et al., 2019
= Psorula usumasintae Crosse & Fischer, 1892 — Bogan, 2010
= Psorula usumasintae (Crosse & Fischer, 1892) — Graf & Cummings, 2007
= Amblema (Psorula) usumasintae Cr. & F. — Haas, 1930
= Quadrula (Rotundaria) usumasintæ (Crosse & Fischer, 1892) — Simpson, 1914
= Quadrula (Rotundaria) usumasintæ (Crosse & Fischer, 1892) — Simpson, 1900
+ Unio (Pleurobema) usumacintæ Crosse & Fischer, 1892 — Martens, 1900
= Unio (Psoronaias) usumasintæ Crosse & Fischer, 1892 — Fischer & Crosse, 1894

Page updated: 08:31:30 Tue 01 Jul 2025