Bivalvia | Unionida | Unionoidea | Unionidae | Ambleminae | Popenaiadini | Nephronaias

Lea, 1859. Proc. Acad. Nat. Sci. 11: 153.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 256 [74], pl. 40, fig. 136.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84398 (by R.I. Johnson, 1974: 125), Chagres R., Panama.
Nephronaias rowellii — Simpson (1900), Simpson (1914), Graf & Cummings (2007), Bogan (2010), Inoue et al. (2020), Graf & Cummings (2021), Cummings et al. (2025)
Unio (Elliptio) rowelli — Martens (1900)
Elliptio (Nephronaias) rowellii — Frierson (1927), Haas (1929)
Nephronaias (s.s.) rowellii — Haas (1969)
Nephronaias rowellii — Simpson (1900), Simpson (1914), Graf & Cummings (2007), Bogan (2010), Inoue et al. (2020), Graf & Cummings (2021), Cummings et al. (2025)
Unio (Elliptio) rowelli — Martens (1900)
Elliptio (Nephronaias) rowellii — Frierson (1927), Haas (1929)
Nephronaias (s.s.) rowellii — Haas (1969)