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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!

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nominal species Unio sphenorhynchus Crosse & Fischer, 1894

Crosse & Fischer, 1894. J. de Conch. 41: 296.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 617, pl. 66, fig. 2-2a.
Type(s): HOLOTYPE (MONOTYPY) MNHN-IM-2000-1792, Mexique.

= unionoid species

Taxonomic Opinions

+ Cummings et al., 2025

= Nephronaias sphenorhyncha (Crosse y Fischer, 1893) — Czaja et al., 2023

= Nephronaias sphenorhyncha (Crosse & Fischer, 1893) — Graf & Cummings, 2021

= Nephronaias sphenorhyncha Crosse & Fischer, 1893 — Bogan, 2010

= Nephronaias sphenorhyncha (Crosse & Fischer, 1893) — Graf & Cummings, 2007

= Nephronaias (s.s.) sphenorhynchus (Crosse & Fischer, 1893) — Haas, 1969

= Elliptio (Nephronaias) sphenorhynchus (Crosse & Fischer) — Haas, 1929

= Elliptio (Nephronaias) sphenorhynchus (Crosse & Fischer, 1893) — Frierson, 1927

= Unio (sec. Elliptio) sphenorhynchus Crosse & Fischer, 1893 — Simpson, 1914

= Unio (sec. Elliptio) sphenorhynchus Crosse & Fischer, 1893 — Simpson, 1900

+ Unio (Sphenonaias) acutirostris Lea, 1866 — Martens, 1900

= Unio (Sphenonaias) sphenorhynchus Crosse & Fischer, 1893 — Fischer & Crosse, 1894

 
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