Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Five Endangered and Two Threatened Mussels in Four Northeast Gulf of Mexico Drainages

We, the U.S. Fish and Wildlife Service (Service), are designating critical habitat for the endangered fat threeridge (Amblema neislerii), shinyrayed pocketbook (Lampsilis subangulata), Gulf moccasinshell (Medionidus penicillatus), Ochlockonee moccasinshell (Medionidus simpsonianus), and oval pigtoe (Pleurobema pyriforme), and the threatened Chipola slabshell (Elliptio chipolaensis) and purple bankclimber (Elliptoideus sloatianus) (collectively referred to as the seven mussels) under the Endangered Species Act of 1973, as amended (Act). The total length of streams designated is approximately 1,185.9 river miles (river mi) (1,908.5 river kilometers (river km)). The critical habitat is located in Houston and Russell counties, Alabama; in Alachua, Bay, Bradford, Calhoun, Columbia, Franklin, Gadsden, Gulf, Jackson, Leon, Liberty, Union, Wakulla, and Washington counties, Florida; and in Baker, Calhoun, Coweta, Crawford, Crisp, Decatur, Dooly, Dougherty, Early, Fayette, Grady, Lee, Macon, Marion, Meriwether, Miller, Mitchell, Peach, Pike, Schley, Spalding, Sumter, Talbot, Taylor, Terrell, Thomas, Upson, Webster, and Worth counties, Georgia.