species Truncilla donaciformis (Lea, 1828): synonymy

Unio donaciformis Lea, 1828

Lea, 1828. Trans. Amer. Phil. Soc. 3 [O. 1]: 267 [9], pl. 4, fig. 3.
Type(s): HOLOTYPE USNM_84457, Cincinnati, Ohio.

Plagiola (Amygdalonaias) donaciformis — Simpson (1900), Simpson (1914)
Unio (s.s.) donaciformis — Call (1900)
Plagiola (Amygdalonajas) [sic] donaciformis — Ortmann (1909)
Amygdalonajas [sic] donaciformis — Ortmann (1914)
Amygdalonaias donaciformis — Utterback (1916)
Truncilla donaciformis — Ortmann & Walker (1922), Ortmann (1924), Ortmann (1925), Frierson (1927), F.C. Baker (1928), ... Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), Saxon et al. (2023), FMCS (2025)
Truncilla dociformes [sic] — Hauck et al. (2023)

Unio zigzag Lea, 1829

Lea, 1829. Trans. Amer. Phil. Soc. 3 [O. 1]: 440, pl. 12, fig. 19 [as ‘zig-zag’].
Type(s): FIGURED SYNTYPE USNM_84459, Cincinnati, Ohio.

Plagiola (Amygdalonaias) donaciformis — Simpson (1900), Simpson (1914)
Unio (s.s.) donaciformis — Call (1900)
Unio zig-zag — de Gregorio (1914)
Amygdalonaias donaciformis — Utterback (1916)
Truncilla donaciformis — Ortmann & Walker (1922), Frierson (1927), F.C. Baker (1928), Murray & Leonard (1962), Haas (1969), ... Parmalee & Bogan (1998), R.I. Johnson (1999), Williams et al. (2008), Watters et al. (2009), IUCN (2012)

Unio nervosa ‘Rafinesque’ of Authors

‘Rafinesque’ of Authors.
Conrad, 1834. New Fresh-Water Shells: 70.
Say, 1834. Amer. Conch. 6: ??.
Lapham, 1852. Trans. WI Agri. Soc. 2: 369.
Agassiz, 1852. Arch. Naturg. 18(1): 48.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 252.
(misidentified reference to Unio (Leptodea) nervosa Rafinesque, 1820)

Plagiola (Amygdalonaias) donaciformis — Simpson (1900), Simpson (1914)
Truncilla donaciformis — Frierson (1927), F.C. Baker (1928), Haas (1969), Parmalee & Bogan (1998), Watters et al. (2009)

Unio ziczac ‘Lea’ of Authors

‘Lea’ of Authors.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 183.
Sowerby, 1866. Conch. Icon. 16: pl. 34, sp. 213.
(error for Unio zigzag Lea, 1829)

Truncilla donaciformis — Frierson (1927)

Unio zig-zag var. illius de Gregorio, 1914

de Gregorio, 1914. Il Nat. Siciliano 2: 41, pl. 4, figs. 3a-c.
(intro'd as intra-sp. of Unio zigzag Lea, 1829)

Unio zig-zag var. illius — de Gregorio (1914)
Truncilla donaciformis — Watters et al. (2009)

Truncilla dociformes Hauck et al., 2023

Hauck et al., 2023. PeerJ 11: fig. 7.
(error for Unio donaciformis Lea, 1828)