Unio muhlfeldianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 27 [as ‘Margarita (Unio) mühlfeldianus’]. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 41, pl. 12, fig. 36.
Type(s): HOLOTYPE USNM_85262, Cumberland R., Tenn.

Lampsilis (sec. Eurynia) mühlfeldianus — Simpson (1900)
Lampsilis (Eurynia) mühlfeldianus — Simpson (1914)
Unio muhlfeldianus — de Gregorio (1914)
Eurynia nebulosus — Ortmann (1918)
Lampsilis (Ligumia) subrostrata — Frierson (1927)
Ligumia subrostrata — Haas (1969)
Villosa iris — Parmalee & Bogan (1998), Williams et al. (2008)
Cambarunio dactylus dactylus — Watters (2018)

Unio dactylus Lea, 1840
Lea, 1840. Proc. Amer. Phil. Soc. 1: 287.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 196, pl. 9, fig. 7.
Type(s): HOLOTYPE USNM_85904, Cany [Caney] Fork, E. Tenn.

Lampsilis (sec. Eurynia) fatuus — Simpson (1900)
Lampsilis (Eurynia) fatua — Simpson (1914)
Eurynia nebulosus — Ortmann (1918)
Lampsilis (Ligumia) nervosa — Frierson (1927)
Villosa iris — Parmalee & Bogan (1998), Williams et al. (2008)
Cambarunio dactylus dactylus — Watters (2018)
Cambarunio dactylus — Graf & Cummings (2021), FMCS (2021), Hopper et al. (2023)

Cambarunio dactylus anatinensis Watters, 2018
Watters, 2018. Visaya, Suppl. (10): 17, pl. 7.

Cambarunio dactylus anatinensis — Watters (2018)

Cambarunio dactylus viridensis Watters, 2018
Watters, 2018. Visaya, Suppl. (10): 18, pl. 8.

Cambarunio dactylus viridensis — Watters (2018)

Unio (Hyridella) muehlfeldtianus Adams & Adams, 1857
‘Lea’ Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 494 [as ‘mühlfeldtianus’].
Ortmann, 1918. Proc. Amer. Phil. Soc. 57(6): 577.
(error for Unio muhlfeldianus Lea, 1838)

Lampsilis (sec. Eurynia) mühlfeldianus — Simpson (1900)

Unio muhlfeldtianus Pilsbry & Rhoads, 1896
‘Lea’ Pilsbry & Rhoads, 1896. Proc. Acad. Nat. Sci. 48: 503.
(error for Unio muhlfeldianus Lea, 1838)