| Page last updated
Thu 3 September 2025 |
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:
Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Sphenonaias species Sphenonaias opacata (Crosse & Fischer, 1894): synonymy
32 specimens Unio opacatus Crosse & Fischer, 1894
 Crosse & Fischer, 1894. J. de Conch. 41: 295.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 592, pl. 66, figs. 1-1a.
Type(s): HOLOTYPE (MONOTYPY) MNHN_IM-2000-1755, Mexique.
Unio (sec. Elliptio) opacatus — Simpson (1900), Simpson (1914)
Unio (Elliptio) opacatus — Martens (1900)
Elliptio (Barynaias) opacatus — Frierson (1927)
Barynaias opacatus — Haas (1969)
Elliptio opacata — Contreras-Arquieta (2000)
Barynaias opacata — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023)
Sphenonaias opacata — Cummings et al. (2025) | |
Taxonomic History (since 1900)Unio (sec. Elliptio) opacatus — Simpson (1900), Simpson (1914)
Unio (Elliptio) opacatus — Martens (1900)
Elliptio (Barynaias) opacatus — Frierson (1927)
Barynaias opacatus — Haas (1969)
Elliptio opacata — Contreras-Arquieta (2000)
Barynaias opacata — Graf & Cummings (2007), Bogan (2010), Graf & Cummings (2021), Czaja et al. (2023)
Sphenonaias opacata — Cummings et al. (2025)
|
