Rotundaria tuberculata

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Rotundaria tuberculata
Cyclonaias tuberculata.jpg
Rotundaria tuberculata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionoida
Family: Unionidae
Tribe: Quadrulini
Genus: Rotundaria
Species: R. tuberculata
Binomial name
Rotundaria tuberculata
Rafinesque, 1820

Cyclonaias tuberculata

Rotundaria tuberculata, commonly called the purple wartyback, is a freshwater mussel, an aquatic bivalve mollusk.

This species is native to eastern North America, generally in the Mississippi River drainage, where it is wide-ranging. It is still common in many areas, particularly in the southern part of its range.[1]

It was formerly classified as the sole species in the genus Cyclonaias, but in 2012 it was moved to Rotundaria based on genetic evidence.[2]


  1. ^ Cyclonaias tuberculata NatureServe
  2. ^ Campbell, David; Lydeard, Charles (2012). "The Genera of Pleurobemini (Bivalvia: Unionidae: Ambleminae)". American Malacological Bulletin. 30 (1): 19–38.