Unio aquilus Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 172.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 92, pl. 20, fig. 72.
Type(s): HOLOTYPE USNM_85993, Flint R., near Macon, Georgia.

Unio (sec. Elliptio) aquilus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) aquilus — Frierson (1927)
Elliptio strigosus — Clench & Turner (1956)
— Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio extensus Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 31.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 67, pl. 12, fig. 49.
Type(s): HOLOTYPE USNM_85995, Dry Cr., Columbus, Ga.

Unio (sec. Elliptio) angustatus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) angustatus — Frierson (1927), Haas (1969)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) lanceolata — R.I. Johnson (1970), Burch (1975)
Elliptio pullata — Williams et al. (2011), Williams et al. (2014)

Unio maconensis Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 172.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 93, pl. 20, fig. 73.
Type(s): HOLOTYPE USNM_86004, Flint R., near Macon, Ga.

Unio (sec. Elliptio) rostraeformis — Simpson (1900), Simpson (1914)
Elliptio (s.s.) rostraeformis — Frierson (1927), Haas (1969)
Elliptio (s.s.) lanceolata — R.I. Johnson (1970), Burch (1975)
Elliptio pullata — Williams et al. (2011), Williams et al. (2014)

Unio pullatis Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 8: 262.
(incorrect original spelling of Unio pullatus Lea, 1857)
Type(s): HOLOTYPE USNM_86020, creeks near Columbus, Ga.

Unio (sec. Elliptio) tuomeyi — Simpson (1914)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) violaceus pullatus — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2014), Bieler (2021)

Unio pullatus Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 8: 262 [as ‘pullatis’].
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 57, pl. 8, fig. 39.
(correct name for Unio pullatis Lea, 1857)
Type(s): HOLOTYPE USNM_86020, creeks near Columbus, Ga.

Unio (sec. Elliptio) tuomeyi — Simpson (1900), Simpson (1914)
Unio pullatus — de Gregorio (1914)
Elliptio (s.s.) complanatus-pullatus — Frierson (1927)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) violaceus pullatus — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Campbell & Lydeard (2012), Haag (2012), Williams et al. (2014), ... FMCS (2021), Hopper et al. (2023), MolluscaBase (2024), FMCS (2025), Campbell & Lydeard (2026)

Unio sublatus Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 169.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 82, pl. 16, fig. 62.
Type(s): HOLOTYPE USNM_85897, Uchee Bar, Columbus, Ga.

Unio (sec. Elliptio) tuomeyi — Simpson (1900), Simpson (1914)
Elliptio (s.s.) complanatus — Frierson (1927)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) violaceus violaceus — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio tetricus Lea, 1857
Lea, 1857. Proc. Acad. Nat. Sci. 9: 170.
Lea, 1859. Jour. Acad. Nat. Sci. 4 [O. 7]: 195 [13], pl. 22, fig. 78.
Type(s): HOLOTYPE USNM_85655, Flint R., Albany, Ga.

Unio (sec. Elliptio) arctatus var. tortivus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) tortivus — Frierson (1927), Haas (1969)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio arctata — Parmalee & Bogan (1998)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio roswellensis Lea, 1858
Lea, 1858. Proc. Acad. Nat. Sci. 10: 165.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 9]: 205 [23], pl. 24, fig. 87.
Type(s): HOLOTYPE USNM_85467, Chattahooche R., Roswell, Cobb Co., Ga.

Unio (sec. Elliptio) complanatus — Simpson (1900), Simpson (1914)
Unio roswellensis — de Gregorio (1914)
Elliptio (s.s.) complanatus — Frierson (1927)
Elliptio (s.s.) violaceus violaceus — Haas (1969)
Elliptio (s.s.) complanata — R.I. Johnson (1970), Burch (1975)
Elliptio complanata — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio verutus Lea, 1859
Lea, 1859. Proc. Acad. Nat. Sci. 11: 171.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 8]: 335 [17], pl. 53, fig. 160.
Type(s): HOLOTYPE USNM_85899, Flat Rock Cr., near Columbus, Ga.

Unio (sec. Elliptio) tuomeyi — Simpson (1900), Simpson (1914)
— de Gregorio (1914)
Elliptio (s.s.) complanatus-tuomeyi — Frierson (1927)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) violaceus tuomeyi — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio viridiradiatus Lea, 1859
Lea, 1859. Proc. Acad. Nat. Sci. 11: 154.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 8]: 336 [18], pl. 53, fig. 161.
Type(s): HOLOTYPE USNM_86018, Big Uchee R., bel. Columbus, Ga.

Unio (sec. Elliptio) tuomeyi — Simpson (1900), Simpson (1914)
Elliptio (s.s.) complanatus — Frierson (1927)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) violaceus violaceus — Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio mercerii Lea, 1862
Lea, 1862. Proc. Acad. Nat. Sci. 14: 169.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 9]: 209 [31], pl. 31, fig. 278.
Type(s): HOLOTYPE USNM_86057, Lee Co., Flint Dr., Ga.

Unio (sec. Elliptio) arctatus var. tortivus — Simpson (1900), Simpson (1914)
Elliptio (s.s.) arctatus — Frierson (1927), Haas (1969)
Elliptio strigosus — Clench & Turner (1956)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio arctata — Parmalee & Bogan (1998)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio singularis B.H. Wright, 1899
B.H. Wright, 1899. Nautilus 13(7): 75.
Type(s): HOLOTYPE USNM_159988, Spring Cr., Decatur Co., Ga.

Unio (sec. Elliptio) singularis — Simpson (1914)
Elliptio (s.s.) errans — Frierson (1927), Haas (1969)
Elliptio (s.s.) icterina — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975)
Elliptio icterina — Brim Box & Williams (2000)
Elliptio pullata — Williams et al. (2008), Williams et al. (2011), Williams et al. (2014)

Unio bullatus Küster, 1862
‘Lea’ Küster, 1862. Conchyl. Cab. 9(2): 311.
(error for Unio pullatus Lea, 1857)

Unio jayensis var. aequillus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 67, sp. 343 [as ‘æquillus’].
(error for Unio aquilus Lea, 1857)

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