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Scientific classification edit
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Genus: Glebula
Conrad, 1853
G. rotundata
Binomial name
Glebula rotundata
(Lamarck, 1819)[1]

Glebula rotundata, the round pearlshell, is a freshwater mussel, aquatic bivalve mollusks in the family Unionidae. The only species in the genus Glebula, it is unusual among unionoid mussels in that it can tolerate brackish water.[2]

It is found on the drainages of the Gulf Coast, as well as in Arkansas and Oklahoma.


  1. ^ "Glebula rotundata". Integrated Taxonomic Information System. Retrieved 18 September 2018.
  2. ^ Haag, Wendell R. (2012). North American Freshwater Mussels: Natural History, Ecology, and Conservation. Cambridge University Press. ISBN 978-0521199384.