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. [nomen dubium]

Anodonta cygnea — Simpson (1900)
Anodonta (Group of A. cygnea) cygnea — 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.
NEOTYPE MCZ_176769 (by R.I. Johnson, 1946: 112), Agawam River, (outlet of Halfway Pond), Plymouth, Mass.

Anodonta implicata — Simpson (1900), Ortmann (1909), R.I. Johnson (1946), Burch (1975), R.I. Johnson (1980), ... IUCN (2011), ITIS (2012), Haag (2012), Whelan et al. (2023), Perkins et al. (2025)
Anodonta (Group of A. cataracta) implicata — Simpson (1914)
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.
LECTOTYPE USNM_86561 (by R.I. Johnson, 1946: 112), Schuylkill, near Phila. Pa.

Anodonta implicata — Simpson (1900), R.I. Johnson (1946)
Anodonta (Group of A. cataracta) implicata — 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.
HOLOTYPE USNM_678302, Housatonica R., Fairfield Co., Connecticut.

Anodonta implicata — Simpson (1900), R.I. Johnson (1946)
Anodonta (Group of A. cataracta) implicata — Simpson (1914)
Anodonta (Pyganodon) implicata — Frierson (1927), Haas (1969), R.I. Johnson (1970)
Anodonta cataracta — Burch (1975)

Anodonta fucata Férussac, 1822

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

Anodonta newtoniensis Lea, 1838

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

Anodonta implicata — Simpson (1900)
Anodonta (Group of A. cataracta) implicata — Simpson (1914)

Anodonta fuscata Westerlund, 1890

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

Anodonta implicate Soliman et al., 2016

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