Margaritana fabula Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 46. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 44, pl. 13, fig. 39.
Type(s): LECTOTYPE USNM_86325 (by Clarke, 1981: 9), Cumberland R., Tenn.

Pegias fabula — Simpson (1900), Simpson (1914), Ortmann (1918), Ortmann (1924), Ortmann (1925), ... Williams et al. (2017), Klymus et al. (2020), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023)
Alasmidonta (Pegias) fabula — Ortmann (1914), Haas (1969), Burch (1975)
Alasmodonta (sec. Pegias) fabula — Thiele (1934)

Margaritana curreyiana Lea, 1840
Lea, 1840. Proc. Amer. Phil. Soc. 1: 288.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 223, pl. 18, fig. 40 [on plate as ‘curreyana’].
Type(s): LECTOTYPE USNM_86227 (by Clarke, 1981: 9), Stones River, Tenn.

Pegias fabula — Simpson (1900), Simpson (1914), Frierson (1927), Haas (1969), Clarke (1981), Parmalee & Bogan (1998), Williams et al. (2008)

Margaritana curreyana Lea, 1842
‘Lea’ of Authors.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: pl. 18, fig. 40.
Agassiz, 1852. Arch. Naturg. 18(1): 47.
Lea, 1852. Synopsis Fam. Naiades: 42.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 263.
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 499.
Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 319.
Lea, 1870. Synopsis Fam. Naiades: 68.
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [6].
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 661.
Simpson, 1914. Descr. Cat. Naiades: 474.
Frierson, 1927. Check List N. Amer. Naiades: 21.
Haas, 1969. Das Tierreich 88: 395.
(error for Margaritana curreyiana Lea, 1840)

Pegias fabula — Clarke (1981), Parmalee & Bogan (1998)

Margaritana correyana Küster, 1862
‘Lea’ of Authors.
Küster, 1862. Conchyl. Cab. 9(2): 300.
Paetel, 1890. Cat. Conch.-Samml. 3: 173.
(error for Margaritana curreyiana Lea, 1840)

Pegias fabula — Simpson (1900), Simpson (1914)

Unio propecoelatus de Gregorio, 1914
de Gregorio, 1914. Il Nat. Siciliano 2: 60, pl. 8, figs. 1a-d.

Unio propecoelatus — de Gregorio (1914)
Pegias fabula — Parmalee & Bogan (1998), Williams et al. (2008)

Unio propecaelatus Parmalee & Bogan, 1998
‘de Gregorio’ Parmalee & Bogan, 1998. The Freshwater Mussels of Tennessee: 169.
‘de Gregorio’ Williams et al., 2008. Freshw. Mussels AL and Mobile Basin: 483.
(error for Unio propecoelatus de Gregorio, 1914)