species Potamilus alatus (Say, 1817): synonymy

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.

Lampsilis (Proptera) alatus — Simpson (1900)
Unio (s.s.) alatus — Call (1900)
Proptera alata — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), Ortmann (1914), ... Mathiak (1979), R.I. Johnson (1980), Mackie et al. (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), Williams et al. (1993), ... Wu et al. (2024), Dai et al. (2025), Chen et al. (2025), FMCS (2025), Campbell & Lydeard (2026)

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.

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.

Proptera alata — Johnson & Baker (1973)

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)

Cyclonaias tuberculata Serb et al., 2003

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

Potamilus alatus — Boyer et al. (2011)