Page last updated
Thu 3 September 2025

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!

Bivalvia | Unionoida | Unionoidea | Unionidae | Ambleminae | Lampsilini | Leaunio

species Leaunio umbrans (Lea, 1857): specimens
     6 available nominal species synonyms (7 total synonyms)

Recent Taxonomic Opinions

Villosa umbrans — Williams et al. (2008), Bogan (2010), Haag (2012), Williams et al. (2017)
Villosa lienosa — Watters et al. (2009)
Villosa vanuxemensis umbrans — ITIS (2012)
Leaunio umbrans — Watters (2018), Graf & Cummings (2021), Bieler (2021), FMCS (2021), Hopper et al. (2023), FMCS (2025)

Range

Coosa River and adjacent tributaries of the Tennesse River, Alabama, Georgia, and Tennessee, USA.

Map of Georeferenced Specimens

USA