Anodonta (Lastena) ohiensis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 316 [also as ‘Lastena ohiensis’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.

Anodonta ohioensis [sic] — Simpson (1900)
Anodonta ohiensis — Simpson (1914), Thiele (1934)
Lastena ohiensis — Utterback (1915), Modell (1945)
Anodonta (Lastena) ohiensis — Frierson (1927), Haas (1969)
Potamilus ohiensis — Morrison (1969), Turgeon et al. (1988), Cummings & Mayer (1992), Williams et al. (1993), Vidrine (1993), ... Inoue et al. (2020), Smith et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023)
Anodonta (Utterbackia) imbecilis [sic] — R.I. Johnson (1970)
— Burch (1975)
Leptodea laevissima — R.I. Johnson (1980)
Potamilus ohioensis [sic] — Oesch (1984)

Anodonta (Lastena) ohiensis var. nigrescens Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

— Vanatta (1915)

Anodonta (Lastena) ohiensis var. radiata Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

— Vanatta (1915)

Anodonta (Lastena) ohiensis var. violacina Rafinesque, 1820
Rafinesque, 1818. Amer. Mon. Mag. 3: 355 [as ‘Potamilus violacinus’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 22, 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

— Vanatta (1915)

Anodonta (Lastena) ohiensis var. viridis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 59.
(intro'd as intra-sp. of Anodonta (Lastena) ohiensis Rafinesque, 1820)

Symphynota laevissima Lea, 1829
Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 444 [58], pl. 13, fig. 23 [as ‘lævissima’].
Type(s): HOLOTYPE USNM_83938, Cincinnati, Ohio.

Lampsilis (Proptera) laevissimus — Simpson (1900)
Unio (s.s.) laevissimus — Call (1900)
Proptera laevissima — Ortmann (1912), Ortmann (1914), Utterback (1916), Ortmann (1925), Frierson (1927), F.C. Baker (1928), Mackie et al. (1980)
Lampsilis (Proptera) laevissima — Simpson (1914)
— de Gregorio (1914)
Leptodea laevissima — Murray & Leonard (1962), Burch (1975), Gordon et al. (1979), Mathiak (1979), R.I. Johnson (1980), ITIS (2012)
Potamilus ohiensis — Morrison (1969), Vidrine (1993), Howells et al. (1996), Strayer & Jirka (1997), Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009), IUCN (2012)
Potamilus ohioensis [sic] — Oesch (1984)
Proptera laevissimus — ITIS (2012)

Anodonta rufa Rafinesque, 1831
Rafinesque, 1831. Continuation: 6. [nomen nudum]
Rafinesque, 1864. [in] Binney & Tryon, reprint: 82. [nomen nudum]

Anodonta ohioensis Agassiz, 1852
‘Rafinesque’ of Authors.
Agassiz, 1852. Arch. Naturg. 18(1): 46.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 648.
Simpson, 1914. Descr. Cat. Naiades: 437.
Oesch, 1984. Missouri Naiades: 183 [as ‘Potamilus’].
(error for Anodonta (Lastena) ohiensis Rafinesque, 1820)

Potamilus ohiensis — Vidrine (1993), Howells et al. (1996)

Unio discoideus Sowerby, 1866
‘Lea’ Sowerby, 1866. Conch. Icon. 16: pl. 53, sp. 275; errata [changed to ‘U. laevissimus Lea’].
(misidentified reference to Symphynota discoidea Lea, 1834)

Lampsilis (Proptera) laevissimus — Simpson (1900)
Lampsilis (Proptera) laevissima — Simpson (1914)
Proptera laevissima — Frierson (1927)
Proptera gracilis — Haas (1969)
Potamilus ohiensis — Parmalee & Bogan (1998), Watters et al. (2009)

Anodonta mutabilis Rafinesque, 1820
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 317.
(intro'd as syn of Anodonta (Lastena) ohiensis Rafinesque, 1820)

— Vanatta (1915)

Unio ohiensis Say, 1834
‘Rafinesque’ Say, 1834. Amer. Conch. 6: [synonymy].
(reference to Anodonta (Lastena) ohiensis Rafinesque, 1820)

Lampsilis (Proptera) laevissimus — Simpson (1900)
Lampsilis (Proptera) laevissima — Simpson (1914)
Proptera laevissima — Frierson (1927)
Proptera gracilis — Haas (1969)
Potamilus ohiensis — Parmalee & Bogan (1998), Watters et al. (2009)

Unio levissimus de Gregorio, 1914
‘Lea’ de Gregorio, 1914. Il Nat. Siciliano 2: 37.
(error for Symphynota laevissima Lea, 1829)