Bivalvia | Unionida | Etherioidea | Mycetopodidae | Anodontitinae | Anodontites
Swainson, 1823. Zool. Illustr. 3(1): pl. 176.
Swainson, 1840. Treat. Malacol.: 381 [as ‘Lamproscapha elongata’].
Glabaris (s.s.) elongatus — Simpson (1900)
Anodontites (s.s.) elongatus — Simpson (1914), Haas (1931), Haas (1969), Pereira et al. (2014), Torres et al. (2018)
Anodontites elongatus — Schade (1965), Ramírez et al. (2003), Simone (2006), Graf & Cummings (2007), Lasso et al. (2009), Bogan (2010), IUCN (2011), Mansur et al. (2020)
“Anodontites elongata” ** — Whelan et al. (2011), Graf et al. (2015), Bolotov et al. (2016), Lopes-Lima et al. (2017), Bolotov et al. (2017), ... Wu et al. (2020), Sano et al. (2020), Wu et al. (2021), Chen et al. (2025), Prié et al. (2026)
“Anodontites elongatus” ** — Pfeiffer et al. (2019)
Anodontites elongata — Guerra et al. (2019), Graf & Cummings (2021), Breure et al. (2022), Torres et al. (2024), Campbell & Lydeard (2026), Martínez et al. (2026), Prié et al. (2026)

Deville & Hupé, 1850. Rev. Mag. Zool. 2: 644, pl. 16, fig. 2.
Hupé, 1857. [in] Castelnau, Anim. Nouv. Rares d’Amer. Sud: 88, pl. 18, fig. 2.
Type(s): FIGURED SYNTYPE MNHN_IM-2000-1787, du Haut Amazone. Upper Amazon River.
Glabaris (s.s.) elongatus — Simpson (1900)
Anodontites (s.s.) elongatus — Simpson (1914), Haas (1931), Haas (1969)
Anodonta solidula — Ramírez et al. (2003)
Anodontites elongatus — Simone (2006)

Lea, 1852. Trans. Amer. Phil. Soc. 10 [O. 5]: 287, pl. 26, fig. 49.
Lea, 1852. Proc. Amer. Phil. Soc. 5: 252. [nomen nudum]
Type(s): HOLOTYPE USNM_86723, Amazon River, Pará.
Glabaris (s.s.) elongatus — Simpson (1900)
Anodontites (s.s.) elongatus — Simpson (1914), Haas (1931), Haas (1969)
Anodontites elongatus — Simone (2006)

Lea, 1857. Proc. Acad. Nat. Sci. 9: 85.
Lea, 1857. Jour. Acad. Nat. Sci. 3 [O. 6]: 316 [36], pl. 32, fig. 31.
Type(s): HOLOTYPE USNM_86519, near Cauca River, Prov. Popayán, New Grenada.
Glabaris (s.s.) holtonis — Simpson (1900)
Anodontites (s.s.) holtonis — Simpson (1914)
Anodontites (s.s.) elongatus — Haas (1931), Haas (1969)
Anodontites elongatus — Simone (2006)
Sowerby, 1867. Conch. Icon. 17: pl. 19, sp. 75.
Glabaris (s.s.) elongatus — Simpson (1900)
Anodontites (s.s.) elongatus — Simpson (1914), Haas (1931), Haas (1969)
Anodontites elongatus — Simone (2006)
Sowerby, 1869. Conch. Icon. 17: pl. 24, sp. 95, fig. 95a-b.
Sowerby, 1870. Conch. Icon. 17: index [as ‘wheatleyi’].
Glabaris (s.s.) elongatus — Simpson (1900)
Anodontites (s.s.) elongatus — Simpson (1914), Haas (1931), Haas (1969)
Anodontites elongatus — Simone (2006)

Germain, 1908. Bull. Mus. Nation. Hist. Natur. 14: 64.
Type(s): POSSIBLE SYNTYPES MNHN_MP_0401, Equateur.
Anodontites (s.s.) hidalgoi — Simpson (1914)
Anodontites (s.s.) elongatus — Haas (1969)
Anodontites elongata — Breure et al. (2022)

F. Baker, 1913. Proc. Acad. Nat. Sci. 65: 667, pl. 27, figs. 1-2.
Type(s): HOLOTYPE (MONOTYPY) ANSP_109369, Island of Mexiana, Brazil.
Anodontites dalli — F. Baker (1913)
Anodontites (s.s.) trigonus trigonus — Haas (1931), Haas (1969)
Anodontites (Styganodon) dalli — Morretes (1949)
Anodontites trigonus — Simone (2006)

Marshall, 1934. J. Washington Acad. Sci. 24(2): 80, figs. 4-6.
Type(s): HOLOTYPE USNM_424732, Aroja, Tubicuary River, Paraguay.
Anodontites schadei — Marshall (1934), Schade (1965)
Anodontites (s.s.) patagonicus patagonicus — Haas (1969)
Anodontites elongatus — Simone (2006)
(error for Anodonta holtonis Lea, 1857)
‘Lea’ Sowerby, 1870. Conch. Icon. 17: pl. 36, sp. 147.
Glabaris (s.s.) holtonis — Simpson (1900)
Glabaris (s.s.) elongatus — Simpson (1900)
Glabaris (s.s.) holtonis — Simpson (1900)
Anodonta (s.s.) montezuma — Martens (1900)
Anodontites dalli — F. Baker (1913)
Anodontites (s.s.) elongatus — Simpson (1914), Haas (1931), Haas (1969), Pereira et al. (2014), Torres et al. (2018)
Anodontites (s.s.) holtonis — Simpson (1914)
Anodontites (s.s.) hidalgoi — Simpson (1914)
Anodontites (s.s.) trigonus trigonus — Haas (1931), Haas (1969)
Anodontites schadei — Marshall (1934), Schade (1965)
Anodontites (Styganodon) dalli — Morretes (1949)
Anodontites elongatus — Schade (1965), Ramírez et al. (2003), Simone (2006), Graf & Cummings (2007), Lasso et al. (2009), Bogan (2010), IUCN (2011), Mansur et al. (2020)
Anodontites (s.s.) patagonicus patagonicus — Haas (1969)
Anodonta solidula — Ramírez et al. (2003)
Anodontites trigonus — Simone (2006)
“Anodontites elongata” ** — Whelan et al. (2011), Graf et al. (2015), Bolotov et al. (2016), Lopes-Lima et al. (2017), Bolotov et al. (2017), ... Wu et al. (2020), Sano et al. (2020), Wu et al. (2021), Chen et al. (2025), Prié et al. (2026)
“Anodontites elongatus” ** — Pfeiffer et al. (2019)
Anodontites elongata — Guerra et al. (2019), Graf & Cummings (2021), Breure et al. (2022), Torres et al. (2024), Campbell & Lydeard (2026), Martínez et al. (2026), Prié et al. (2026)