Page last updated
Mon 06 May 2024

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 documents data for Johnson et al. (2018), such as genera and species attributed to that publication (including known misspellings, misidentifications, and other unavailable names) as well as taxonomic opinions, if available. Taxonomic opinions refer to uses of genera and species as valid and invalid in that work.

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Publication information

Johnson, N.A., C.H. Smith, J.M. Pfeiffer, C.R. Randklev, J.D. Williams & J.D. Austin. 2018. Integrative taxonomy resolves taxonomic uncertainty for freshwater mussels being considered for protection under the U.S. Endangered Species Act. Scientific Reports 8. 15892 (16 pp.).

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Taxonomic Opinions

Amblema plicata

Cyclonaias asperata

Cyclonaias infucata

Cyclonaias kleiniana

Cyclonaias necki Burlakova et al., 2018

Cyclonaias nodulata (Rafinesque, 1820)

Cyclonaias petrina (Gould, 1855)
+ Unio bollii Call, 1881

Cyclonaias pustulosa (Lea, 1831)
+ Obliquaria (Quadrula) bullata Rafinesque, 1820
+ Obliquaria (Quadrula) retusa Rafinesque, 1820
+ Unio verrucosa Valenciennes, 1827
+ Unio premorsus Rafinesque, 1831
+ Unio nodulosus Say, 1834
+ Unio prasinus Conrad, 1834
+ Unio schoolcraftensis Lea, 1834
+ Unio mortoni Conrad, 1835
+ Unio dorfeuillianus Lea, 1838
+ Unio turgidus Lea, 1838
+ Unio nodiferus Conrad, 1841
+ Unio pernodosus Lea, 1845
+ Unio aureus Lea, 1859
+ Unio houstonensis Lea, 1859
+ Unio refulgens Lea, 1868
+ Unio sphaericus Lea, 1868
+ Unio petrinus Frierson, 1927

Cyclonaias succissa (Lea, 1852)

Cyclonaias tuberculata (Rafinesque, 1820)

Elliptio crassidens

Megalonaias nervosa

Quadrula apiculata

Quadrula quadrula

Theliderma metanevra

Tritogonia verrucosa

Uniomerus tetralasmus

Page updated: 09:18:15 Mon 06 May 2024

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