Cyclonaias pustulosa

Cyclonaias pustulosa,^[2] the pimpleback,^[1] is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is native to North America, where it is widespread^[1][3] and common.^[1] It has possibly been extirpated from New York, however, and populations in Pennsylvania are critically imperiled, according to NatureServe.^[1]

Cyclonaias pustulosa
Conservation status
Secure  (NatureServe)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Genus:	Cyclonaias
Species:	C. pustulosa
Binomial name
Cyclonaias pustulosa (I. Lea, 1831)
Synonyms
Amphinaias pustulosa (I. Lea, 1831) Quadrula pustulosa (I. Lea, 1831) Rotundaria pustulosa (I. Lea, 1831)

The species was formerly classified within the genus Quadrula, and in 2012 it was moved to Rotundaria based on genetic evidence.^[4]

A view of valves of Rotundaria pustulosa

References

1. NatureServe (3 March 2023). "Cyclonaias pustulosa". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 7 March 2023.
2. MolluscaBase eds. (2023). "Cyclonaias pustulosa (I. Lea, 1831)". MolluscaBase. Retrieved 7 March 2023 – via World Register of Marine Species.
3. Graf, D.L.; Cummings, K.S. "The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)". MUSSEL Project Web Site. Retrieved 7 March 2023.
4. Campbell, David C.; Lydeard, Charles (2012). "The Genera of Pleurobemini (Bivalvia: Unionidae: Ambleminae)". American Malacological Bulletin. 30 (1): 19–38. doi:10.4003/006.030.0102. S2CID 84056130.

• Williams, J. D.; Bogan, A. E.; Garner, J. T. (2008). Freshwater mussels of Alabama and the Mobile Basin in Georgia, Mississippi and Tennessee. University of Alabama Press, Tuscaloosa. 908 pp.