Page last updated
Wed 01 Dec 2021

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 | Lampsilini | Toxolasma

species Toxolasma parvum (Barnes, 1823): specimens
     5 nominal species as synonyms

Taxonomic History (since 2007)

Toxolasma parvusGraf & Cummings (2007), Cummings & Graf (2010), Boyer et al. (2011), ITIS (2012), ..., Cha et al. (2018), Aunins et al. (2018), Wang et al. (2018), Chen et al. (2020)
Toxolasma parvumWilliams et al. (2008), Watters et al. (2009), Bogan (2010), Breton et al. (2011), ..., Wu et al. (2020), Wu et al. (2020), Teiga-Teixeira et al. (2020), Graf & Cummings (2021)
Toxolasma sp.Williams et al. (2008)
Unio pertenuisWatters et al. (2009)
Toxolasma parvaHaag (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
species map



Sangamon River, Lake of the Woods, Mahomet, Champaign Co., Illinois 40.2040° N, 88.3876° W


Neosha Mill Pond, Dodge Co., Wisconsin


UMMZ_29195 Brownsville, Texas

UMMZ_29196 Brownsville, Texas

UMMZ_99674 Brownsville, Texas

Page updated: 16:46:09 Wed 01 Dec 2021

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