Page last updated
Thu 17 July 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 | ... | Unionidae | Ambleminae | Quadrulini | Uniomerus

species Uniomerus tetralasmus (Say, 1831): specimens
     11 available nominal species synonyms (20 total synonyms)

Recent Taxonomic Opinions

Uniomerus tetralasmus — Graf & Cummings (2007), Tiemann et al. (2007), Williams et al. (2008), Watters et al. (2009), Bogan (2010), ... Wu et al. (2023), Wu et al. (2024), Dai et al. (2024), Wu et al. (2024), Dai et al. (2025)
Uniomerus declivis — Watters et al. (2009)
U. tetralasmus — Marshall et al. (2018)

Range

Widespread in eastern North America, from Lake Erie south to the Gulf of Mexico and west to Colorado.

Map of Georeferenced Specimens

Mexico

USA

Georeferenced Genbank Vouchers

USA

UF_438436 (UtetBaP011). (5.8S, COI, ITS1, ND1) USA, Mississippi, Hinds County, Tallahalla Creek at MP 29.69, about 8.6 km S of Raymond (32.18353, -90.40645)

UF_438303 (UtetCol005). (5.8S, COI, ITS1, ND1) USA, Texas, Travis County, Unnamed tributary of Hams Branch at Cameron Road, trib of Wilbarger Creek (30.3652663, -97.619918)

JBFMC_8586_3. (16S) USA: Texas, Red River