Unio stramineus Conrad, 1834
Conrad, 1834. Amer. J. Sci. 25(2): 339, pl. 1, fig. 6.
Conrad, 1834. New Fresh-Water Shells: pl. 7, fig. 1.
Conrad, 1838. Monogr. Fam. Unionidae 1(10): 91, pl. 50, fig. 1.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 258.

Lampsilis (sec. Eurynia) stramineus — Simpson (1900)
Lampsilis (Eurynia) straminea — Simpson (1914)
Lampsilis (Ligumia) fasciata-straminea — Frierson (1927)
Ligumia siliquoidea straminea — Haas (1969)
Lampsilis straminea — Burch (1975), Curole & Kocher (2005), Graf & Cummings (2007), Williams et al. (2008), Chapman et al. (2008), ... Porto-Hannes et al. (2021), FMCS (2021), Stodola et al. (2021), Hopper et al. (2023), Hauck et al. (2023)
Lampsilis straminea straminea — Turgeon et al. (1988), Williams et al. (1993), Turgeon et al. (1998), Lydeard et al. (1999), Jones et al. (2005), ITIS (2012)

Unio claibornensis Lea, 1838
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 105, pl. 24, fig. 115.
Type(s): LECTOTYPE USNM_85020, Claiborne, Alabama.

Lampsilis (sec. Eurynia) claibornensis — Simpson (1900)
Lampsilis claibornensis — Ortmann (1912), Ortmann (1925), Clench & Turner (1956), Burch (1975), Davis & Fuller (1981), Vidrine (1993), Rosenberg et al. (1994), Rosenberg et al. (1997)
Lampsilis (Eurynia) claibornensis — Simpson (1914)
Lampsilis (Ligumia) fasciata-claibornensis — Frierson (1927)
Ligumia siliquoidea straminea — Haas (1969)
Lampsilis straminea claibornensis — Turgeon et al. (1988), Williams et al. (1993), Parmalee & Bogan (1998), Turgeon et al. (1998), Lydeard et al. (1999), Brim Box & Williams (2000), Jones et al. (2005), ITIS (2012)
Lampsilis straminea — Williams et al. (2008), Williams et al. (2017)

Unio obtusus Lea, 1840
Lea, 1840. Proc. Amer. Phil. Soc. 1: 287.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 201 [39], pl. 11, fig. 13.
(homonym of Unio obtusa d’Orbigny, 1835)
Type(s): HOLOTYPE USNM_86142, Georgia.

Lampsilis (sec. Eurynia) claibornensis — Simpson (1900)
Lampsilis (Eurynia) claibornensis — Simpson (1914)
Lampsilis (Ligumia) fasciata-claibornensis — Frierson (1927)
Lampsilis claibornensis — Clench & Turner (1956), Burch (1975)
Ligumia siliquoidea straminea — Haas (1969)
Lampsilis hydiana — Vidrine (1993)
Lampsilis straminea claibornensis — Parmalee & Bogan (1998), Brim Box & Williams (2000)
Lampsilis straminea — Williams et al. (2008), Williams et al. (2011)

Unio pallescens Lea, 1845
Lea, 1845. Proc. Amer. Phil. Soc. 4: 164.
Lea, 1848. Trans. Amer. Phil. Soc. 10 [O. 4]: 79, pl. 7, fig. 20.
Type(s): HOLOTYPE (MONOTYPY) USNM_84958, Tuscaloosa, Alabama.

Lampsilis (sec. Eurynia) claibornensis — Simpson (1900)
Lampsilis (Eurynia) claibornensis — Simpson (1914)
Unio pallescens — de Gregorio (1914)
Lampsilis (Ligumia) fasciata-straminea — Frierson (1927)
Lampsilis claibornensis — Clench & Turner (1956), Burch (1975)
Ligumia siliquoidea straminea — Haas (1969)
Lampsilis straminea claibornensis — Parmalee & Bogan (1998), Brim Box & Williams (2000)
Lampsilis straminea — Williams et al. (2008)

Unio contrarius Conrad, 1849
Conrad, 1849. Proc. Acad. Nat. Sci. 4: 153.
Conrad, 1850. Jour. Acad. Nat. Sci. 1: 276, pl. 37, fig. 7.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 247.

Lampsilis (sec. Eurynia) contrarius — Simpson (1900)
Unio (sec. Elliptio) lecontianus — Simpson (1900)
Lampsilis (Eurynia) contraria — Simpson (1914)
Elliptio (s.s.) lecontianus — Frierson (1927), Haas (1969)
Lampsilis claibornensis — Burch (1975)
Lampsilis straminea claibornensis — Parmalee & Bogan (1998), Brim Box & Williams (2000)
Lampsilis straminea — Williams et al. (2008), Williams et al. (2011)

Unio affinis Lea, 1852
Lea, 1852. Proc. Amer. Phil. Soc. 5: 251. [nomen nudum]
Lea, 1852. Trans. Amer. Phil. Soc. 10 [O. 5]: 271 [27], pl. 19, fig. 26.
Type(s): HOLOTYPE USNM_84910, Louisiana.

Lampsilis (sec. Eurynia) affinis — Simpson (1900)
Lampsilis (Eurynia) approxima — Simpson (1914)
Lampsilis (Ligumia) fasciata-hydiana — Frierson (1927)
Ligumia siliquoidea straminea — Haas (1969)

Unio perpastus Lea, 1861
Lea, 1861. Proc. Acad. Nat. Sci. 13: 60.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 8]: 69 [73], pl. 7, fig. 219.
Type(s): HOLOTYPE USNM_84960, Coosa R., Alabama.

Lampsilis (s.s.) perpastus — Simpson (1900)
Lampsilis (Eurynia) perpasta — Simpson (1914)
Lampsilis (Ligumia) perpasta — Frierson (1927)
Ligumia perpasta — Haas (1969)
Lampsilis perpasta — Burch (1975), ITIS (2012)
Lampsilis straminea claibornensis — Parmalee & Bogan (1998)
Lampsilis straminea — Williams et al. (2008)

Unio clairbornensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 70, sp. 357.
(error for Unio claibornensis Lea, 1838)

Lampsilis (sec. Eurynia) claibornensis — Simpson (1900)

Unio regularis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 351.
(misidentified reference to Unio regularis Lea, 1841)

Lampsilis (sec. Eurynia) tener — Simpson (1900)
Lampsilis (Ligumia) fasciata-claibornensis — Frierson (1927)