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 | ... | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Alasmidonta

species Alasmidonta varicosa (Lamarck, 1819): specimens
     2 available nominal species synonyms (5 total synonyms)

Recent Taxonomic Opinions

Alasmidonta (Decurambis) varicosa — Graf & Cummings (2007)
Alasmidonta varicosa — Kneeland & Rhymer (2007), Bogan (2010), Cummings & Graf (2010), ITIS (2012), Haag (2012), ... Wu et al. (2024), Wu et al. (2024), Hou et al. (2024), Perkins et al. (2025), FMCS (2025)

Range

From Nova Scotia, Canada south to Georgia, USA.

Map of Georeferenced Specimens

USA

TYPE_LOCALITY_MP_002. la rivière de Schuglkill [Schuylkill], pres de Philadelphie [Philadelphia Co., Pennsylvania].

TYPE_LOCALITY_MP_003. Passaic River