Cyclonaias pustulosa explained

Cyclonaias pustulosa,^[1] the pimpleback, 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^[2] and common. It has possibly been extirpated from New York, however, and populations in Pennsylvania are critically imperiled, according to NatureServe.

The species was formerly classified within the genus Quadrula, and in 2012 it was moved to Rotundaria based on genetic evidence.^[3]

References

• 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.

Notes and References

1. Web site: ((MolluscaBase eds.)). 2023 . Cyclonaias pustulosa (I. Lea, 1831) . MolluscaBase . 7 March 2023. World Register of Marine Species.
2. Web site: Graf. D.L.. Cummings. K.S.. The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). 7 March 2023. MUSSEL Project Web Site.
3. Campbell . David C.. Lydeard . Charles . 2012 . The Genera of Pleurobemini (Bivalvia: Unionidae: Ambleminae) . American Malacological Bulletin . 30 . 1 . 19–38. 10.4003/006.030.0102 . 84056130 .