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Obliquaria (Ellipsaria) ellipsaria Rafinesque, 1820

Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303 [also as ‘U. ellipsaria’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.

Plagiola lineolata — Vanatta (1915), Ortmann & Walker (1922)
Ellipsaria lineolata — Burch (1975), Parmalee & Bogan (1998), Graf & Cummings (2007), Williams et al. (2008), Watters et al. (2009), Graf & Cummings (2021)

Obliquaria (Ellipsaria) ellipsaria var. fusca Rafinesque, 1820

Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 48.
(intro'd as intra-sp. of Obliquaria (Ellipsaria) ellipsaria Rafinesque, 1820)

Obliquaria (Plagiola) depressa Rafinesque, 1820

Rafinesque, 1819. Jour. Phys. Chim. Hist. Nat. 88: 426 [as ‘Unio (Plagiola) depressa’]. [nomen nudum]
Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 302, pl. 81, figs. 5-7 [also as ‘U. depressa’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 29, 47.
(renamed Unio compressus Rafinesque, 1831)
Type(s): NEOTYPE ANSP_20207, Ohio River.

Plagiola (s.s.) securis — Simpson (1900), Simpson (1914)
Plagiola lineolata — Vanatta (1915), Ortmann & Walker (1922), Frierson (1927), F.C. Baker (1928), Haas (1969)
Plagiola depressa — Haas (1969)
Ellipsaria lineolata — Burch (1975), Oesch (1984), Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009)

Obliquaria (Plagiola) lineolata Rafinesque, 1820

Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 303 [also as ‘U. linéolata’].
Rafinesque, 1864. [in] Binney & Tryon, reprint: 47.
Type(s): LECTOTYPE ANSP_20242, Ohio River.

Unio (s.s.) lineolatus — Call (1900)
Plagiola lineolata — Vanatta (1915), Ortmann (1918), Ortmann & Walker (1922), Ortmann (1924), Ortmann (1925), Frierson (1927), F.C. Baker (1928), Murray & Leonard (1962), Haas (1969), Gordon et al. (1979), Mathiak (1979)
Crenodonta lineolata — Morrison (1969)
Ellipsaria lineolata — Burch (1975), R.I. Johnson (1980), Oesch (1984), Turgeon et al. (1988), Cummings & Mayer (1992), ... FMCS (2021), Hopper et al. (2023), Hauck et al. (2023), Saxon et al. (2023), FMCS (2025)

Unio securis Lea, 1829

Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 437 [51], pl. 11, fig. 17.
Type(s): HOLOTYPE USNM_84475, Cincinnati, Ohio.

Plagiola (s.s.) securis — Simpson (1900), Simpson (1914)
Unio (s.s.) lineolatus — Call (1900)
Plagiola securis — Ortmann (1909), Ortmann (1909), Ortmann (1910), Ortmann (1912), Utterback (1916)
Unio securis — de Gregorio (1914)
Plagiola lineolata — Vanatta (1915), Ortmann (1918), Ortmann & Walker (1922), Ortmann (1924), Frierson (1927), F.C. Baker (1928), Murray & Leonard (1962), Haas (1969)
Plagiolopsis securis — Thiele (1934)
Plagiola depressa — Haas (1969)
Crenodonta lineolata — Morrison (1969)
Ellipsaria lineolata — Burch (1975), R.I. Johnson (1980), Oesch (1984), Vidrine (1993), Parmalee & Bogan (1998), Williams et al. (2008), Watters et al. (2009)

Unio compressus Rafinesque, 1831

Rafinesque, 1831. Continuation: 4.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 77.
(new name for Obliquaria (Plagiola) depressa Rafinesque, 1820; homonym of Unio compressus Sowerby, 1829)

Ellipsaria lineolata — Williams et al. (2008), Watters et al. (2009)

Unio lineolatus Say, 1834

‘Rafinesque’ of Authors.
‘Rafinesque’ Say, 1834. Amer. Conch. 6: pl. 68.
‘Rafinesque’ Conrad, 1834. New Fresh-Water Shells: 70.
(reference to Obliquaria (Plagiola) lineolata Rafinesque, 1820)

Plagiola (s.s.) securis — Simpson (1900), Simpson (1914)
Ellipsaria lineolata — Watters et al. (2009)

Unio securis Deshayes, 1832

Deshayes, 1832. Enc. Méth. 2 (Deuxième partie): 578.
Deshayes, 1835. Hist. Natur. Anim. sans Vert. 6: 550.
(reference to Unio securis Lea, 1829)

Plagiola (s.s.) securis — Simpson (1900)