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 | Lampsilini | Toxolasma

species Toxolasma parvum (Barnes, 1823): specimens
     3 available nominal species synonyms (5 total synonyms)

Recent Taxonomic Opinions

Toxolasma parvus — Graf & Cummings (2007), Tiemann et al. (2007), Cummings & Graf (2010), Boyer et al. (2011), ITIS (2012), ... Wang et al. (2018), Marshall et al. (2018), Cha et al. (2018), Chen et al. (2020), Gasparini et al. (2020)
Toxolasma parvum — Williams et al. (2008), Watters et al. (2009), Bogan (2010), Williams et al. (2011), Breton et al. (2011), ... Wu et al. (2024), Dai et al. (2024), MolluscaBase (2024), Wu et al. (2024), Dai et al. (2025)
Toxolasma sp. — Williams et al. (2008)
Toxolasma parva — Haag (2012)

Range

Widespread in the Interior Basin and the rivers of the Gulf Coastal Plain, USA and Canada. Introduced to the Apalachicola and Ochlockonee rivers.

Map of Georeferenced Specimens

USA

Georeferenced Genbank Vouchers

USA

UAUC_3331. (COI, ND1) Tennessee River, Decatur, Morgan Co., AL

UF_439468. (16S) USA: Texas, Brazos River