Designation of Critical Habitat for Roswell Springsnail, Koster's Springsnail, Noel's Amphipod, and Pecos Assiminea: Proposed rule

We, the U.S. Fish and Wildlife Service, propose to revise designated critical habitat for the Pecos assiminea (Assiminea pecos), and to newly designate critical habitat for the Roswell springsnail (Pyrgulopsis roswellensis), Koster's springsnail (Juturnia kosteri), and Noel's amphipod (Gammarus desperatus), under the Endangered Species Act of 1973, as amended. In total, we are proposing to designate as critical habitat approximately 515 acres (208.4 hectares) for the four species. The proposed critical habitat is located in Chaves County, New Mexico, and Pecos and Reeves Counties, Texas. We also announce the availability of the draft economic analysis and draft environmental assessment for this action.