{"abstract":"We, the U.S. Fish and Wildlife Service, propose to list the Alabama pearlshell (Margaritifera marrianae), round ebonyshell (Fusconaia rotulata), southern sandshell (Hamiota australis), southern kidneyshell (Ptychobranchus jonesi), and Choctaw bean (Villosa choctawensis) as endangered, and the tapered pigtoe (Fusconaia burkei), narrow pigtoe (Fusconaia escambia), and fuzzy pigtoe (Pleurobema strodeanum) as threatened, under the Endangered Species Act of 1973, as amended (Act). These eight species are endemic to portions of the Escambia River, Yellow River, and Choctawhatchee River basins of Alabama and Florida; and to localized portions of the Mobile River Basin in Alabama. These mussel species have disappeared from other portions of their natural ranges primarily due to habitat deterioration and poor water quality as a result of excessive sedimentation and environmental contaminants. We are also proposing to designate critical habitat under the Act for these eight species. In total, approximately 2,406 (kilometers (km) (1,495) miles (mi)) of stream and river channels fall within the boundaries of the proposed critical habitat designation. The proposed critical habitat is located in Bay, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and Washington Counties, FL; and Barbour, Bullock, Butler, Coffee, Conecuh, Covington, Crenshaw, Dale, Escambia, Geneva, Henry, Houston, Monroe, and Pike Counties, Alabama. These proposals, if made final, would implement Federal protection provided by the Act.","action":"Proposed rule.","agencies":[{"raw_name":"DEPARTMENT OF THE INTERIOR","name":"Interior Department","id":253,"url":"https://www.federalregister.gov/agencies/interior-department","json_url":"https://www.federalregister.gov/api/v1/agencies/253","parent_id":null,"slug":"interior-department"},{"raw_name":"Fish and Wildlife Service","name":"Fish and Wildlife Service","id":197,"url":"https://www.federalregister.gov/agencies/fish-and-wildlife-service","json_url":"https://www.federalregister.gov/api/v1/agencies/197","parent_id":253,"slug":"fish-and-wildlife-service"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2011/10/04/2011-24519.html","cfr_references":[{"chapter":null,"citation_url":null,"part":17,"title":50}],"citation":"76 FR 61482","comment_url":null,"comments_close_on":"2011-12-05","correction_of":null,"corrections":[],"dates":"We will accept comments received or postmarked on or before December 5, 2011. We must receive requests for public hearings, in writing, at the address shown in the ADDRESSES section by November 18, 2011.","disposition_notes":null,"docket_ids":["FWS-R4-ES-2011-0050","MO 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8 Gulf Coast Drainage Mussel Listing and Critical Habitat Rule","document_id":"FWS-R4-ES-2011-0050-0020"},{"title":"Literature Cited for Final Rule to List and Designate Critical Habitat for 8 Gulf Coast Mussels","document_id":"FWS-R4-ES-2011-0050-0019"},{"title":"Draft Economic Analysis","document_id":"FWS-R4-ES-2011-0050-0013"},{"title":"Peer Review Report from McGregor","document_id":"FWS-R4-ES-2011-0050-0011"},{"title":"Peer Review from Michael M. Gangloff, PhD","document_id":"FWS-R4-ES-2011-0050-0010"},{"title":"Peer Review of Scientific Information Plan- Proposed Listing and Designation of Critical Habitat for Eight Gulf Coast Mussel","document_id":"FWS-R4-ES-2011-0050-0003"},{"title":"Cited References","document_id":"FWS-R4-ES-2011-0050-0002"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/1018-AW92/endangered-and-threatened-wildlife-and-plants-listing-and-designation-of-critical-habitat-for-eight-","title":"Endangered and Threatened Wildlife and Plants; Listing and Designation of Critical Habitat for Eight Southeastern U.S. Freshwater Mussel Species"},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FWS-R4-ES-2011-0050","supporting_documents_count":7,"docket_id":"FWS-R4-ES-2011-0050","regulation_id_number":"1018-AW92","title":"Alabama Pearlshell, Round Ebonyshell, Southern Sandshell, Southern Kidneyshell, Choctaw Bean, Tapered Pigtoe, Narrow Pigtoe and Fuzzy Pigtoe","checked_regulationsdotgov_at":"2011-10-24T21:07:32Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":61482,"subtype":null,"title":"Endangered and Threatened Wildlife and Plants; Endangered Status for the Alabama Pearlshell, Round Ebonyshell, Southern Sandshell, Southern Kidneyshell, and Choctaw Bean, and Threatened Status for the Tapered Pigtoe, Narrow Pigtoe, and Fuzzy Pigtoe; With Critical Habitat","toc_doc":"Endangered Status for the Alabama Pearlshell, et al., With Critical Habitat","toc_subject":"Endangered and Threatened Wildlife and Plants:","topics":["Endangered and threatened species","Exports","Imports","Reporting and recordkeeping requirements","Transportation"],"type":"Proposed Rule","volume":76}