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Page last updated
Wed 1 October 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 | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias yzabalensis

nominal species Unio yzabalensis Crosse & Fischer, 1893

Crosse & Fischer, 1893. J. de Conch. 40: 294.
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 597, pl. 64, figs. 4-4b.
Type(s): SYNTYPES MNHN-IM-2000-1810, Lac Yzabal, Guatemala.

= Nephronaias yzabalensis

Taxonomic Opinions

= Nephronaias yzabalensis (Crosse & Fischer, 1893) — Cummings et al., 2025

= Nephronaias yzabalensis (Crosse & Fischer, 1892) — Graf & Cummings, 2021

= Nephronaias yzabalensis Crosse & Fischer, 1892 — Bogan, 2010

= Nephronaias yzabalensis (Crosse & Fischer, 1892) — Graf & Cummings, 2007

= Nephronaias (s.s.) yzabalensis (Crosse & Fischer, 1892) — Haas, 1969

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

= Elliptio (Nephronaias) ravistellus-yzabalensis (Crosse & Fischer, 1892) — Frierson, 1927

= Elliptio yzabalensis (Crosse & Fischer) — Ortmann, 1921

= Nephronaias yzabalensis (Crosse & Fischer, 1892) — Simpson, 1914

= Nephronaias yzabalensis (Crosse & Fischer, 1892) — Simpson, 1900

= Unio (Simonaias) yzabalensis Crosse & Fischer, 1892 — Martens, 1900

= Unio (Cænonaias) yzabalensis Crosse & Fischer, 1892 — Fischer & Crosse, 1894
 
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