{"abstract":"We, the U.S. Fish and Wildlife Service (Service), propose to list the fluted kidneyshell (Ptychobranchus subtentum) and slabside pearlymussel (Pleuronaia dolabelloides) as endangered species under the Endangered Species Act of 1973, as amended (Act), and we propose to designate critical habitat for both species. These two species are endemic to portions of the Cumberland and Tennessee River systems of Alabama, Kentucky, Mississippi, Tennessee, and Virginia. In total, approximately 2,218 river kilometers (1,380 river miles) are being proposed for designation as critical habitat. The proposed critical habitat for fluted kidneyshell is located in Limestone County, Alabama; Jackson, Laurel, McCreary, Pulaski, Rockcastle, and Wayne Counties, Kentucky; Bedford, Claiborne, Cocke, Fentress, Franklin, Giles, Grainger, Greene, Hamblen, Hancock, Hickman, Humphreys, Jefferson, Knox, Lincoln, Marshall, Maury, Moore, Morgan, Overton, Perry, Pickett, Polk, Scott, and Sevier Counties, Tennessee; and Bland, Lee, Russell, Scott, Smyth, Tazewell, Washington, and Wythe Counties, Virginia. The proposed critical habitat for slabside pearlymussel is located in Colbert, Jackson, Limestone, Madison, and Marshall Counties, Alabama; Tishomingo County, Mississippi; Bedford, Bledsoe, Claiborne, Cocke, Franklin, Giles, Greene, Hamblen, Hancock, Hickman, Humphreys, Lincoln, Marion, Marshall, Maury, Moore, Perry, Polk, and Sequatchie Counties, Tennessee; and Bland, Lee, Russell, Scott, Smyth, Tazewell, Washington, and Wythe Counties, Virginia.","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/2012/10/04/2012-24019.html","cfr_references":[{"chapter":null,"citation_url":null,"part":17,"title":50}],"citation":"77 FR 60804","comment_url":null,"comments_close_on":"2012-12-03","correction_of":null,"corrections":[],"dates":"We will accept comments received or postmarked on or before December 3, 2012. We must receive requests for public hearings, in writing, at the address shown in the FOR FURTHER INFORMATION CONTACT section by November 19, 2012.","disposition_notes":null,"docket_ids":["Docket No. FWS-R4-ES-2012-0004","4500030113"],"dockets":[],"document_number":"2012-24019","effective_on":null,"end_page":60882,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2012/10/04/2012-24019.xml","html_url":"https://www.federalregister.gov/documents/2012/10/04/2012-24019/endangered-and-threatened-wildlife-and-plants-endangered-species-status-for-the-fluted-kidneyshell","images":{"EP04OC12.001":{"large":"https://img.federalregister.gov/EP04OC12.001/EP04OC12.001_large.png","medium":"https://img.federalregister.gov/EP04OC12.001/EP04OC12.001_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.001/EP04OC12.001_original_size.png"},"EP04OC12.023":{"large":"https://img.federalregister.gov/EP04OC12.023/EP04OC12.023_large.png","medium":"https://img.federalregister.gov/EP04OC12.023/EP04OC12.023_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.023/EP04OC12.023_original_size.png"},"EP04OC12.022":{"large":"https://img.federalregister.gov/EP04OC12.022/EP04OC12.022_large.png","medium":"https://img.federalregister.gov/EP04OC12.022/EP04OC12.022_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.022/EP04OC12.022_original_size.png"},"EP04OC12.021":{"large":"https://img.federalregister.gov/EP04OC12.021/EP04OC12.021_large.png","medium":"https://img.federalregister.gov/EP04OC12.021/EP04OC12.021_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.021/EP04OC12.021_original_size.png"},"EP04OC12.020":{"large":"https://img.federalregister.gov/EP04OC12.020/EP04OC12.020_large.png","medium":"https://img.federalregister.gov/EP04OC12.020/EP04OC12.020_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.020/EP04OC12.020_original_size.png"},"EP04OC12.009":{"large":"https://img.federalregister.gov/EP04OC12.009/EP04OC12.009_large.png","medium":"https://img.federalregister.gov/EP04OC12.009/EP04OC12.009_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.009/EP04OC12.009_original_size.png"},"EP04OC12.008":{"large":"https://img.federalregister.gov/EP04OC12.008/EP04OC12.008_large.png","medium":"https://img.federalregister.gov/EP04OC12.008/EP04OC12.008_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.008/EP04OC12.008_original_size.png"},"EP04OC12.007":{"large":"https://img.federalregister.gov/EP04OC12.007/EP04OC12.007_large.png","medium":"https://img.federalregister.gov/EP04OC12.007/EP04OC12.007_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.007/EP04OC12.007_original_size.png"},"EP04OC12.029":{"large":"https://img.federalregister.gov/EP04OC12.029/EP04OC12.029_large.png","medium":"https://img.federalregister.gov/EP04OC12.029/EP04OC12.029_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.029/EP04OC12.029_original_size.png"},"EP04OC12.006":{"large":"https://img.federalregister.gov/EP04OC12.006/EP04OC12.006_large.png","medium":"https://img.federalregister.gov/EP04OC12.006/EP04OC12.006_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.006/EP04OC12.006_original_size.png"},"EP04OC12.028":{"large":"https://img.federalregister.gov/EP04OC12.028/EP04OC12.028_large.png","medium":"https://img.federalregister.gov/EP04OC12.028/EP04OC12.028_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.028/EP04OC12.028_original_size.png"},"EP04OC12.005":{"large":"https://img.federalregister.gov/EP04OC12.005/EP04OC12.005_large.png","medium":"https://img.federalregister.gov/EP04OC12.005/EP04OC12.005_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.005/EP04OC12.005_original_size.png"},"EP04OC12.027":{"large":"https://img.federalregister.gov/EP04OC12.027/EP04OC12.027_large.png","medium":"https://img.federalregister.gov/EP04OC12.027/EP04OC12.027_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.027/EP04OC12.027_original_size.png"},"EP04OC12.004":{"large":"https://img.federalregister.gov/EP04OC12.004/EP04OC12.004_large.png","medium":"https://img.federalregister.gov/EP04OC12.004/EP04OC12.004_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.004/EP04OC12.004_original_size.png"},"EP04OC12.026":{"large":"https://img.federalregister.gov/EP04OC12.026/EP04OC12.026_large.png","medium":"https://img.federalregister.gov/EP04OC12.026/EP04OC12.026_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.026/EP04OC12.026_original_size.png"},"EP04OC12.003":{"large":"https://img.federalregister.gov/EP04OC12.003/EP04OC12.003_large.png","medium":"https://img.federalregister.gov/EP04OC12.003/EP04OC12.003_medium.png","original_size":"https://img.federalregister.gov/EP04OC12.003/EP04OC12.003_original_size.png"},"EP04OC12.025":{"large":"https://img.federalregister.gov/EP04OC12.025/EP04OC12.025_large.png","medium":"https://img.federalregister.gov/EP04OC12.025/EP04OC12.025_medium.png","original_size":"https://img.federalregister.gov/EP04OC12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