维基百科 Potamilus alatus is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, commonly known as the river mussels. This species is native to eastern North America. It is found in the drainages of the Ohio River, the St. Lawrence River, the Great Lakes, and the Canadian Interior Basin. References[edit] Bogan, A.E. 1996. Potamilus alatus. 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007.