Unio hopetonensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 30. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 29, pl. 9, fig. 24.
Type(s): HOLOTYPE USNM_85391, Hopeton, near Darien, Georgia.

Unio (sec. Elliptio) hopetonensis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) complanatus-subinflatus — Frierson (1927)
Elliptio (s.s.) violaceus subinflatus — Haas (1969)
Elliptio (s.s.) hopetonensis — R.I. Johnson (1970), Burch (1975)
Elliptio hopetonensis — Kat (1983), Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Graf & Cummings (2007), ... Rogers et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), MolluscaBase (2024)

Unio inusitatis Lea, 1859
Lea, 1859. Proc. Acad. Nat. Sci. 11: 171.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 8]: 333 [15], pl. 52, fig. 158.
Type(s): HOLOTYPE USNM_85531, Swift Cr., bel. Macon, Ga.

Unio (sec. Elliptio) inusitatis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) complanatus — Frierson (1927)
Elliptio (s.s.) violaceus violaceus — Haas (1969)
Elliptio (s.s.) hopetonensis — R.I. Johnson (1970), Burch (1975)

Unio hopetownensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 349.
(error for Unio hopetonensis Lea, 1838)

Unio (sec. Elliptio) hopetonensis — Simpson (1900)

Unio inusitatus Lea, 1870
‘Lea’ Lea, 1870. Synopsis Fam. Naiades: 51.
‘Lea’ Frierson, 1927. Check List N. Amer. Naiades: 31.
(error for Unio inusitatis Lea, 1859)

Unio insitatus B.H. Wright, 1888
‘Lea’ B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [3].
(error for Unio inusitatis Lea, 1859)

Unio (sec. Elliptio) inusitatis — Simpson (1900), Simpson (1914)