Round ebonyshell

The round ebonyshell (Reginaia rotulata) is a species of freshwater mussel, an aquatic bivalve mollusk.

Round ebonyshell

Critically Imperiled  (NatureServe)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Genus: Reginaia
Species:
R. rotulata
Binomial name
Reginaia rotulata
(B. H. Wright, 1899)
Synonyms
  • Fusconaia rotulata
  • Obovaria rotulata

This species is native to the United States, where it is endemic to a small stretch of the Conecuh and Escambia rivers in Alabama and Florida. It has one of the most restricted ranges of any North American freshwater mussel.

It is threatened by habitat loss and pollution. In 2012 it was added to the endangered species list of the U.S. Fish and Wildlife Service.[3]

The population count is unknown as of now.

This genus was separated from Fusconaia in 2012 based on genetic evidence.[4]

References
  1. NatureServe (3 March 2023). "Reginaia rotulata". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 7 March 2023.
  2. "Round Ebonyshell (Reginaia rotulata)". Environmental Conservation Online System. U.S. Fish & Wildlife Service. Retrieved 7 March 2023.
  3. 77 FR 61664
  4. Campbell, David C.; Lydeard, Charles (2012). "Molecular Systematics of Fusconaia (Bivalvia: Unionidae: Ambleminae)". American Malacological Bulletin. 30 (1): 1–17. doi:10.4003/006.030.0101. S2CID 84552044.


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