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 | Sphaerioida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Sphaerium

species Sphaerium occidentale (Lewis, 1856): specimens
     2 available nominal species synonyms (3 total synonyms)

Recent Taxonomic Opinions

Sphaerium occidentale — Mackie (2007), Schultheiß et al. (2008), Bogan (2010), Stunžėnas et al. (2011), ITIS (2012), Clewing et al. (2013), Bespalaya et al. (2017), Saito et al. (2022), Bespalaya et al. (2022)
Sphaerium (Herringtonium) occidentale — Fuentealba-Jara et al. (2017), Bespalaya et al. (2023)

Range

Widespread in North America.

Map of Georeferenced Specimens

There are no specimens for this species in the MUSSELpdb.

Georeferenced Genbank Vouchers

USA

UMMZ_300354. (16S: DQ986373, go to Genbank) Grapevine Pt. Douglas Lake, Munro Twp SE1/4 Sec 28 T37N, R3W, Cheboygan Co., Michigan.

RMBH_MSph_285_1. (16S: ON563530, 28S: ON783904, go to Genbank) USA: Montana, Yellowstone National Park, Yellowstone Lake.

RMBH_MSph_285_2. (16S: ON563531, 28S: ON783905, go to Genbank) ditto.