The dark pigtoe, scientific name Pleurobema furvum, is a species of freshwater mussel in the family Unionidae, the river mussels. This aquatic bivalve mollusk is native to Alabama in the United States, where it is mainly limited to the Black Warrior River. It is a federally listed endangered species of the United States.
- USFWS. Endangered Status for Eight Freshwater Mussels and Threatened Status for Three Freshwater Mussels in the Mobile River Drainage. Federal Register March 17, 1993.
- Bogan, A.E. 1996. Pleurobema furvum. 2011 IUCN Red List of Threatened Species. Downloaded on 26 September 2011.
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