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Unio modioliformis Lea, 1834

Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 97 [209], pl. 13, fig. 40.
Type(s): HOLOTYPE USNM_85029, Santee Canal, S. Carolina.

Lampsilis (sec. Eurynia) modioliformis — Simpson (1900)
Lampsilis (Eurynia) modioliformis — Simpson (1914)
Lampsilis (Ligumia) modioliformis — Frierson (1927)
Ligumia modioliformis — Haas (1969)
Villosa vibex — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Watters (2018)
Villosa modioliformis — Bogan (2010)

Unio vibex Conrad, 1834

Conrad, 1834. New Fresh-Water Shells: 31, pl. 4, fig. 3.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 260.
Type(s): UNKNOWN ANSP_56488, Black Warrior River, Ala.

Lampsilis (sec. Eurynia) vibex — Simpson (1900)
Eurynia (Micromya) vibex — Ortmann (1912)
Lampsilis (Eurynia) vibex — Simpson (1914)
Lampsilis (Ligumia) vibex — Frierson (1927)
Villosa vibex — Clench & Turner (1956), R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), R.I. Johnson (1980), ... Patterson et al. (2021), FMCS (2021), Hopper et al. (2023), Hauck et al. (2023), FMCS (2025)
Ligumia vibex — Haas (1969)

Unio exiguus Lea, 1840

Lea, 1840. Proc. Amer. Phil. Soc. 1: 287.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 191 [29], pl. 7, fig. 1.
Type(s): HOLOTYPE USNM_84974, Chattahoochee R., Columbus, Georgia.

Lampsilis (sec. Eurynia) vibex — Simpson (1900)
Lampsilis (Eurynia) vibex — Simpson (1914)
Lampsilis (Ligumia) vibex — Frierson (1927)
Villosa vibex — Clench & Turner (1956), R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Brim Box & Williams (2000), Williams et al. (2008), Williams et al. (2011), Williams et al. (2014), Watters (2018)
Ligumia vibex — Haas (1969)

Unio pellucidus Lea, 1845

Lea, 1845. Proc. Amer. Phil. Soc. 4: 163.
Lea, 1848. Trans. Amer. Phil. Soc. 10 [O. 4]: 70 [44], pl. 2, fig. 6.
Type(s): HOLOTYPE (MONOTYPY) ANSP_56493, [no locality available - North America].

Lampsilis (sec. Eurynia) pellucidus — Simpson (1900)
Lampsilis (Eurynia) pellucida — Simpson (1914)
Lampsilis (Villosa) pellucidus — Frierson (1927)
Lampsilis (Villosa) pellucida — Haas (1969)
Villosa vibex — Williams et al. (2011), Williams et al. (2014), Watters (2018)

Unio stagnalis Conrad, 1849

Conrad, 1849. Ann. Mag. Nat. Hist. 4: 300.
Conrad, 1850. Jour. Acad. Nat. Sci. 1: 275, pl. 37, fig. 2.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 257.
Type(s): HOLOTYPE MCZ_178778, Ogeechee River, Georgia.

Lampsilis (sec. Eurynia) vibex — Simpson (1900)
Lampsilis (Eurynia) vibex — Simpson (1914)
Lampsilis (Ligumia) stagnalis — Frierson (1927)
Ligumia stagnalis — Haas (1969)
Villosa vibex — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Watters (2018)

Unio nigrinus Lea, 1852

Lea, 1852. Trans. Amer. Phil. Soc. 10 [O. 5]: 284 [40], pl. 24, fig. 44.
Lea, 1852. Proc. Amer. Phil. Soc. 5: 252. [nomen nudum]
Type(s): HOLOTYPE USNM_86132, W Florida.

Lampsilis (sec. Eurynia) vibex var. nigrinus — Simpson (1900)
Lampsilis (Eurynia) vibex var. nigrina — Simpson (1914)
Lampsilis (Ligumia) vibex-nigrina — Frierson (1927)
Villosa vibex — Clench & Turner (1956), R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008), Williams et al. (2011), Williams et al. (2014), Watters (2018)
Ligumia vibex — Haas (1969)

Unio prevostianus Lea, 1852

Lea, 1852. Trans. Amer. Phil. Soc. 10 [O. 5]: 269 [25], pl. 19, fig. 24.
Lea, 1852. Proc. Amer. Phil. Soc. 5: 252. [nomen nudum]

Lampsilis (sec. Eurynia) ogeecheensis — Simpson (1900)
Lampsilis (Eurynia) ogeecheensis — Simpson (1914)
Lampsilis (Ligumia) vibex — Frierson (1927)
Villosa vibex — Clench & Turner (1956), R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008), Watters (2018)
Ligumia vibex — Haas (1969)

Unio gracilior Lea, 1857

Lea, 1857. Proc. Acad. Nat. Sci. 8: 262.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 56, pl. 8, fig. 38 [as ‘gracillior’].
Type(s): HOLOTYPE USNM_85088, Buckhead Creek, Georgia.

Lampsilis (sec. Eurynia) gracilior — Simpson (1900)
Lampsilis (Eurynia) gracilior — Simpson (1914)
Lampsilis (Ligumia) gracilior — Frierson (1927)
Ligumia gracilior — Haas (1969)
Villosa vibex — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Watters (2018), Bieler (2021)

Unio rutilans Lea, 1857

Lea, 1857. Proc. Acad. Nat. Sci. 8: 262.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 59, pl. 9, fig. 41.
Type(s): HOLOTYPE USNM_85093, Othcalooga Cr., Gordon Co., Georgia.

Lampsilis (sec. Eurynia) vibex — Simpson (1900)
Lampsilis (Eurynia) vibex — Simpson (1914)
Lampsilis (Ligumia) vibex — Frierson (1927)
Villosa vibex — Clench & Turner (1956), R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2008), Watters (2018)
Ligumia vibex — Haas (1969)

Unio sudus Lea, 1857

Lea, 1857. Proc. Acad. Nat. Sci. 9: 170.
Lea, 1859. Jour. Acad. Nat. Sci. 4 [O. 7]: 194 [12], pl. 21, fig. 77.
Type(s): HOLOTYPE USNM_85155, Dry Creek, near Columbus, Georgia.

Lampsilis (sec. Eurynia) sudus — Simpson (1900)
Lampsilis (Eurynia) suda — Simpson (1914)
Lampsilis (Ligumia) ogeecheensis — Frierson (1927)
Villosa vibex — Clench & Turner (1956), R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Brim Box & Williams (2000), Williams et al. (2008), Watters (2018)
Ligumia ogeecheensis — Haas (1969)
Villosa lienosa — Williams et al. (2011), Williams et al. (2014)

Unio averellii B.H. Wright, 1888

B.H. Wright, 1888. Proc. Acad. Nat. Sci. 40: 115, pl. 3, fig. 2.
Type(s): LECTOTYPE USNM_91142 (by R.I. Johnson, 1967: 5), Lake Ashby, Fla.

Lampsilis (sec. Eurynia) vibex var. nigrinus — Simpson (1900)
Lampsilis (Eurynia) vibex var. nigrina — Simpson (1914)
Lampsilis (Ligumia) vibex-nigrina — Frierson (1927)
Villosa vibex amygdalum — Clench & Turner (1956)
Ligumia vibex — Haas (1969)
Villosa vibex — R.I. Johnson (1970), R.I. Johnson (1972), Burch (1975), Parmalee & Bogan (1998), Williams et al. (2011), Williams et al. (2014), Watters (2018)

Unio floridensis Wright & Wright, 1888

Wright & Wright, 1888. Conch. Exchange 2: 105.
(misidentified reference to Unio floridensis Lea, 1852)

Lampsilis (sec. Eurynia) vibex var. nigrinus — Simpson (1900)
Lampsilis (Eurynia) vibex var. nigrina — Simpson (1914)

Unio averillii Simpson, 1900

“Wright” of Authors.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 560.
Simpson, 1914. Descr. Cat. Naiades: 138.
Frierson, 1927. Check List N. Amer. Naiades: 76.
R.I. Johnson, 1970. Bull. MCZ 140(6): 373.
R.I. Johnson, 1972. Bull. Fla. State Mus. 16(4): 237.
Burch, 1975. Freshw. Unio. North Amer.: 159.
(error for Unio averellii B.H. Wright, 1888)

Villosa vibex — Watters (2018)

Unio gracillior Lea, 1858

Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 56.
(error for Unio gracilior Lea, 1857)

Lampsilis (sec. Eurynia) gracilior — Simpson (1900)
Lampsilis (Eurynia) gracilior — Simpson (1914)
Villosa vibex — Bieler (2021)

Unio delumbis Küster, 1861

‘Conrad’ Küster, 1861. Conchyl. Cab. 9(2): 207, pl. 69, fig. 1.
(misidentified reference to Unio delumbis Conrad, 1834)

Lampsilis (sec. Eurynia) modioliformis — Simpson (1900)
Lampsilis (Eurynia) modioliformis — Simpson (1914)
Lampsilis (Ligumia) modioliformis — Frierson (1927)

Unio prevostianus Sowerby, 1868

‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 315.
(reference to Unio prevostianus Lea, 1852)

Lampsilis (sec. Eurynia) vibex — Simpson (1900)
Lampsilis (Eurynia) vibex — Simpson (1914)

Unio subangulatus Sowerby, 1868

‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 327.
(misidentified reference to Unio subangulatus Lea, 1840)

Lampsilis (sec. Eurynia) vibex — Simpson (1900)
Lampsilis (Eurynia) vibex — Simpson (1914)

Unio prevostianns de Gregorio, 1914

‘Lea’ de Gregorio, 1914. Il Nat. Siciliano 2: 39.
(error for Unio prevostianus Lea, 1852)

Margaron (Unio) previostianus Watters, 2018

‘Lea’ Watters, 2018. Visaya, Suppl. (10): 10.
(error for Unio prevostianus Lea, 1852)