Page last updated
Thu 04 Apr 2024

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!

This page reports the specimens in the MUSSELpdb and provides a map if geocodes are known. The taxonomic history reports the record of different names and combinations that have been applied to this species (and its synonyms) since 2007.

Search the database pages:

Unionoida | Unionoidea | Unionidae | Ambleminae | Quadrulini | Uniomerus

species Uniomerus declivis (Say, 1831): specimens
     6 nominal species as synonyms

Taxonomic History (since 2007)

Uniomerus declivisGraf & Cummings (2007), Campbell et al. (2008), Watters et al. (2009), Cummings & Graf (2010), ..., Graf & Cummings (2021), FMCS (2021), Neemuchwala et al. (2023), Hopper et al. (2023)
Uniomerus tetralasmusWilliams et al. (2008), IUCN (2012), Williams et al. (2014)
Uniomerus excultusITIS (2012)
Uniomerus declivusInoue et al. (2018), Burlakova et al. (2019)
U. declivisMarshall et al. (2018)

Range: Gulf Coastal Plain from Alabama west to Texas, including the lower Mississippi.

Map of Georeferenced Specimens
species map





Bayou Teche, Louisiana


Genbank Vouchers


UF_438312 (COI, 16S, 28S, ITS1, 5.8S) USA:Texas:Newton County:Sabine River; Datum (WGS84) UTM 15R 0436930; 33926622; found in woody debris on right bank of river (30.665006, -93.658356)

UAUC_3290 (COI, 16S, ND1, ITS1) Big Sunflower River, Farrell Rd. Bridge, ~ 5 mi N of Clarksdale, Coahoma Co. MS


JBFMC_8586-2 (SRA)

Page updated: 07:16:11 Thu 04 Apr 2024

NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."