Unionoida | Unionoidea | Unionidae | 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
- OMITTED — 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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