Atlantic pigtoe
Encyclopedia
The Atlantic pigtoe is a species of bivalve in the Unionidae
family. It is endemic to the United States
.
Unionidae
Unionidae is a family of freshwater mussels, the largest in the order Unionoida, the bivalve mollusks sometimes known as river mussels, naiads, or simply as unionids.The range of distribution for this family is world-wide...
family. It is endemic to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
.