Page last updated
Fri 05 May 2023

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 | Cyclonaias

species Cyclonaias nodulata (Rafinesque, 1820): specimens
     5 nominal species as synonyms

Taxonomic History (since 2007)

Amphinaias nodulataGraf & Cummings (2007), Cummings & Graf (2010), IUCN (2011)
Quadrula nodulataTiemann et al. (2007), Williams et al. (2008), Watters et al. (2009), Bogan (2010), Boyer et al. (2011), Haag (2012), ITIS (2012), Szumowski et al. (2012), McMurray et al. (2012)
Cyclonaias nodulataWilliams et al. (2017), Johnson et al. (2018), Burlakova et al. (2018), Lopes-Lima et al. (2019), Graf & Cummings (2021), FMCS (2021)

Range: Widespread in the Interior Basin and the western Gulf Coastal Plain, USA.

Map of Georeferenced Specimens
species map



Cincinnati, Ohio


Kentucky River


Page updated: 07:24:01 Fri 05 May 2023

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