The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)
FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!
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Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Lampsilini | Leaunio umbrans nominal species Unio tenebricus Lea, 1857  Lea, 1857. Proc. Acad. Nat. Sci. 9: 171.
Lea, 1858. Jour. Acad. Nat. Sci. 4 [O. 6]: 83, pl. 17, fig. 63.
Type(s): HOLOTYPE USNM_85143, Etowah R., Georgia.
= Leaunio umbrans Taxonomic Opinions+ Leaunio umbrans (Lea, 1857) — Watters, 2018 + Villosa umbrans (Lea, 1857) — Williams et al., 2008 + Villosa vanuxemensis (Lea, 1836) — Parmalee & Bogan, 1998 + Villosa vanuxemensis umbrans (Lea, 1857) — Burch, 1975 + Ligumia vanuxemensis (Lea, 1838) — Haas, 1969 + Lampsilis (Ligumia) vanuxemensis (Lea, 1838) — Frierson, 1927 + Eurynia (Micromya) vanuxemensis (Lea, 1838) — Ortmann, 1918 + Lampsilis (Eurynia) vanuxemensis (Lea, 1838) — Simpson, 1914 + Lampsilis (sec. Eurynia) vanuxemensis Lea — Simpson, 1900 = Unio tenebricus Lea — B.H. Wright, 1888 = Margaron (Unio) tenebricus (Lea) — Lea, 1870
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