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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!

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Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias dysonii

nominal species Elliptio (Nephronaias) sajensis Frierson, 1927

Frierson, 1927. Check List N. Amer. Naiades: 37, sp. 139.
Frierson, 1928. Nautilus 41(4): 139, pl. 2, fig. 2.
Type(s): LECTOTYPE [AS HOLOTYPE] UMMZ_108010, Rio Saja, 5 mi W Esmeralda, Guatemala.

= Nephronaias dysonii

Taxonomic Opinions

+ Nephronaias dysonii (Lea, 1859) — Cummings et al., 2025

= Nephronaias sajensis (Frierson, 1927) — Graf & Cummings, 2021

= Nephronaias sajensis Frierson, 1927 — Bogan, 2010

= Nephronaias sajensis (Frierson, 1927) — Graf & Cummings, 2007

= Nephronaias (s.s.) sajensis (Frierson, 1927) — Haas, 1969

= Elliptio (Nephronaias) sajensis (Frierson, 1927) — Frierson, 1927

 
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