Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Suwannee Moccasinshell

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We, the U.S. Fish and Wildlife Service (Service), propose to designate critical habitat for the Suwannee moccasinshell (Medionidus walkeri) under the Endangered Species Act (Act). The Suwannee moccasinshell is a freshwater mussel species from the Suwannee River Basin in Florida and Georgia. In total, approximately 306 kilometers (190 miles) of stream channels in Alachua, Bradford, Columbia, Dixie, Gilchrist, Hamilton, Lafayette, Madison, Suwannee, and Union Counties, Florida, and Brooks and Lowndes Counties, Georgia, fall within the boundaries of the proposed critical habitat designation. If we finalize this rule as proposed, it would extend the Act's protections to this species' critical habitat. The effect of this regulation is to designate critical habitat for the Suwannee moccasinshell under the Act. We also announce the availability of a draft economic analysis of the proposed designation.