species Utterbackiana implicata (Say, 1829): synonymy

Mytilus fucatus Dillwyn, 1817

‘S’ Lightfoot, 1786. Catalogue of the Portland Museum: 29, no. 672. [nomen nudum]
‘Solander’s MSS.’ Dillwyn, 1817. Descr. Cat. Rec. Shells 1: 317.

Anodonta cygnea — Simpson (1900), Simpson (1914)
Anodonta implicata — R.I. Johnson (1980)

Anodonta implicata Say, 1829

Say, 1829. New Harm. Dissem. 2(22): 340, sp. 1.
Say, 1858. [in] Binney, Compl. Writings T. Say: 138.
Type(s): NEOTYPE MCZ_176769 (by R.I. Johnson, 1946: 112), Agawam River, (outlet of Halfway Pond), Plymouth, Mass.

Anodonta implicata — Simpson (1900), Ortmann (1909), Simpson (1914), Burch (1975), R.I. Johnson (1980), ... IUCN (2011), ITIS (2012), Haag (2012), Whelan et al. (2023), Perkins et al. (2025)
Anodonta (Pyganodon) implicata — Frierson (1927), Haas (1969), R.I. Johnson (1970), Kat (1983)
Pyganodon implicata — Modell (1945), Graf & Cummings (2007), Cummings & Graf (2010), Jones (2015)
Anodonta implicate [sic] — Soliman et al. (2016)
Utterbackiana implicata — Williams et al. (2017), Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025), Campbell & Lydeard (2026)

Anodonta newtonensis Lea, 1838

Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 79 [as ‘newtoniensis’], pl. 21, fig. 66.
Type(s): LECTOTYPE USNM_86561 (by R.I. Johnson, 1946: 112), Schuylkill, near Phila. Pa.

Anodonta implicata — Simpson (1900), Simpson (1914)
Anodonta (Pyganodon) implicata — Frierson (1927), Haas (1969), R.I. Johnson (1970)
Anodonta cataracta — Burch (1975)

Anodonta housatonica Gould, 1848

Linsley, 1845. Amer. J. Sci. 48(2): 277. [nomen nudum]
Gould, 1848. Amer. J. Sci. 56(17): 234, figs. 4-5.
Type(s): HOLOTYPE USNM_678302, Housatonica R., Fairfield Co., Connecticut.

Anodonta implicata — Simpson (1900), Simpson (1914)
Anodonta (Pyganodon) implicata — Frierson (1927), Haas (1969), R.I. Johnson (1970)
Anodonta cataracta — Burch (1975)

Anodonta fucata Férussac, 1822

Férussac, 1822. Art. Anod., in Dict. class. d’hist. nat. 1: 397.
(reference to Mytilus fucatus Dillwyn, 1817)

Anodonta newtoniensis Lea, 1838

Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 79.
(incorrect original spelling of Anodonta newtonensis Lea, 1838)

Anodonta implicata — Simpson (1900), Simpson (1914)

Anodonta fuscata Westerlund, 1890

‘Fer.’ Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 296.
(error for Anodonta fucata Férussac, 1822)

Anodonta implicate Soliman et al., 2016

Soliman et al., 2016. Egypt. J. Zool. 66: 122.
(error for Anodonta implicata Say, 1829)