Page last updated
Wed 02 Sep 2020

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:

Bivalvia | Unionoida | Unionoidea | Unionidae | Unioninae | Anodontini | Alasmidontina | Simpsonaias

species Simpsonaias ambigua (Say, 1825): specimens
     4 nominal species as synonyms.

Taxonomic History

Simpsonaias ambiguaGraf & Cummings (2007), Watters et al. (2009), Cummings & Graf (2010), Bogan (2010), Haag (2012), ITIS (2012), McMurray et al. (2012), Williams et al. (2017), Lopes-Lima et al. (2017), IUCN (2017), Bolotov et al. (2017), Bolotov et al. (2017), Bolotov et al. (2018), Huang et al. (2019), Lopes-Lima et al. (2020)

Range: Wide but discontinuous distribution in the Interior and Great Lakes basins of eastern North America.

Map of Georeferenced Specimens
species map



Ohio R., Louisville, Ky


Page updated: 09:27:47 Wed 02 Sep 2020

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