Unio alatus Say, 1817
Bruguière, 1797, Encycl. Méth. 2: pl. 248, figs. 1a-b [as Unio sp.] ?.
Say, 1817, Nich. Encyc. 2: [12,] pl. 4, fig. 2.
Say, 1819, Nich. Encyc. 4: [18,] pl. 4, fig. 2.
Say, 1858, [in] Binney, Compl. Writings T. Say: 52.
Type(s): NEOTYPE SMF_4349, N. Amerika.

Unio alatus — Say (1817), Say (1819), Barnes (1823), Wood (1828), ..., B.H. Wright (1888), Singley (1893), Call (1895), Pilsbry & Rhoads (1896)
Unio alata — Lamarck (1819), Deshayes (1832)
Metaptera alatus — Rafinesque (1820)
Symphynota alata — Lea (1829), Ferussac (1835), Jay (1835)
Margarita (Unio) alatus — Lea (1836), Lea (1838)
Mysca alata — Schlüter (1838)
Mysca (Lymnadia) alata — Swainson (1840)
Metaptera alata — Stimpson (1851), Agassiz (1852), Conrad (1853)
Margaron (Unio) alatus — Lea (1852), Lea (1870)
Unio (Metaptera) megapterus — Mörch (1853)
Unio (Metaptera) alatus — Adams & Adams (1857), Fischer (1887)
Unio (sec. Metaptera) alatus — Paetel (1890)
Lampsilis (Proptera) alatus — Simpson (1900)
Unio (s.s.) alatus — Call (1900)
Proptera alata — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), ..., Mackie et al. (1980), R.I. Johnson (1980), Davis & Fuller (1981), Contreras-Arquieta (2000)
Lampsilis (Proptera) alata — Ortmann (1909), Simpson (1914)
Unio (Symphynota) alatus — de Gregorio (1914)
Lampsilis alatus — Vanatta (1915)
Potamilus alatus — Morrison (1969), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), ..., Hopper et al. (2023), Wu et al. (2023), Wu et al. (2024), Dai et al. (2024)

Potamilus alatus Rafinesque, 1818
Rafinesque, 1818, Amer. Mon. Mag. 3: 355. [nomen nudum]
Rafinesque, 1819, Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘U. (Proptera) alata’]. [nomen nudum]
Rafinesque, 1864, [in] Binney & Tryon, reprint: 22, 29.
(reference to Unio alatus Say, 1817)

Potamilus alatus — Rafinesque (1818)
Unio (Proptera) alata — Rafinesque (1819)

Metaptera megaptera Rafinesque, 1820
Rafinesque, 1820, Ann. Gén. Sci. Phys. 5 (13): 300, pl. 80, figs. 20-22 [also as ‘Unio megaptera’].
Chenu, 1845, Biblio. Conch. 3: 15, pl. 1, figs. 20-22.
Rafinesque, 1864, [in] Binney & Tryon, reprint: 44.
Type(s): LECTOTYPE ANSP_20211, Ohio River.

Metaptera megaptera — Rafinesque (1820)
Symphynota alata — Ferussac (1835)
Unio alatus — Conrad (1836), Küster (1848)
Metaptera alata — Conrad (1853)
Unio (Metaptera) megapterus — Mörch (1853)
Lampsilis (Proptera) alatus — Simpson (1900)
Lampsilis (Proptera) alata — Simpson (1914)
Lampsilis alatus — Vanatta (1915)
Proptera alata megaptera — F.C. Baker (1928)
Proptera alata — Haas (1969), Clarke (1973), Burch (1975), R.I. Johnson (1980)
Potamilus alatus — Oesch (1984), Strayer & Jirka (1997), Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009), He & Zhuang (2013)

Unio alatoides Lea, 1868
Lea, 1868, Proc. Acad. Nat. Sci. 20: 164.

Unio alatoides — Lea (1868)
Proptera alata — Johnson & Baker (1973)

Cyclonaias tuberculata Serb et al., 2003
Serb et al., 2003, MPE 28: 10.
(misidentified reference to Obliquaria (Rotundaria) tuberculata Rafinesque, 1820)

Cyclonaias tuberculata — Serb et al. (2003)
Potamilus alatus — Boyer et al. (2011)

Taxonomic History (since 1900)

Lampsilis (Proptera) alatus — Simpson (1900)
Unio (s.s.) alatus — Call (1900)
Proptera alata — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), ..., Mackie et al. (1980), R.I. Johnson (1980), Davis & Fuller (1981), Contreras-Arquieta (2000)
Lampsilis (Proptera) alata — Ortmann (1909), Simpson (1914)
Unio (Symphynota) alatus — de Gregorio (1914)
Lampsilis alatus — Vanatta (1915)
Proptera alata megaptera — F.C. Baker (1928)
Potamilus alatus — Morrison (1969), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), ..., Hopper et al. (2023), Wu et al. (2023), Wu et al. (2024), Dai et al. (2024)
Cyclonaias tuberculata — Serb et al. (2003)