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Unio shepardianus Lea, 1834

Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 95 [207], pl. 13, fig. 38.
Type(s): PARATYPE MCZ_155568, [Altamaha River] [Hopeton near Darien] McIntosh Co., Georgia.

Unio (sec. Elliptio) shepardianus — Simpson (1900), Simpson (1914)
Unio shepardianus — de Gregorio (1914)
Elliptio (s.s.) shepardianus — Frierson (1927), Haas (1969)
Elliptio (s.s.) shepardiana — R.I. Johnson (1970), Burch (1975)
Ensinaia sheppardiana [sic] — Starobogatov (1970)
Elliptio shepardiana — Kat (1983), Davis (1984), Turgeon et al. (1988), Williams et al. (1993), IUCN (1996), ... Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), MolluscaBase (2024), FMCS (2025)

Unio sheppardianus Catlow & Reeve, 1845

‘Lea’ of Authors.
Catlow & Reeve, 1845. Conch. Nomen.: 64.
Starobogatov, 1970. Fauna Moll. Continent.: 287 [as ‘Ensinaia’].
(error for Unio shepardianus Lea, 1834)

Unio (sec. Elliptio) shepardianus — Simpson (1900), Simpson (1914)
Elliptio shepardiana — Campbell & Lydeard (2012)