| Page last updated
Thu 17 July 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!
Bivalvia | ... | Ambleminae | Popenaiadini | Nephronaias sphenorhyncha nominal species Unio (Nephronaias) ortmanni Frierson, 1913  Frierson, 1913. Nautilus 27(2): 14, pl. 2.
Frierson, 1927. Check List N. Amer. Naiades: 36 [as ‘E. (Nephronaias) sphenorhynchus Cr. & Fisch. 1893’].
Type(s): PARATYPES MCZ_20916, Conchins River, Guatemala.
= Nephronaias sphenorhyncha Taxonomic Opinions+ — Haas, 1969 + Elliptio (Nephronaias) sphenorhynchus (Crosse & Fischer) — Haas, 1929 + Elliptio (Nephronaias) sphenorhynchus (Crosse & Fischer, 1893) — Frierson, 1927 = Elliptio ortmanni (Frierson) — Ortmann, 1921
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