Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Sphenonaias

species Sphenonaias opacata (Crosse & Fischer, 1894): synonymy

32 specimens

Synonymy

image of type lot

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)