Endangered and Threatened Wildlife and Plants; Establishment of Nonessential Experimental Population Status for 15 Freshwater Mussels, 1 Freshwater Snail, and 5 Fishes in the Lower French Broad River and in the Lower Holston River, Tennessee

We, the U.S. Fish and Wildlife Service (Service), in cooperation with the State of Tennessee and Conservation Fisheries, Inc., a nonprofit organization, plan to reintroduce 15 mussels listed as endangered under section 4 of the Endangered Species Act of 1973, as amended (Act): Appalachian monkeyface (pearlymussel) (Quadrula sparsa), birdwing pearlymussel (Lemiox rimosus), cracking pearlymussel (Hemistena lata), Cumberland bean (pearlymussel) (Villosa trabalis), Cumberlandian combshell (Epioblasma brevidens), Cumberland monkeyface (pearlymussel) (Quadrula intermedia), dromedary pearlymussel (Dromus dromas), fanshell (Cyprogenia stegaria), fine-rayed pigtoe (Fusconaia cuneolus), orange-foot pimpleback (pearlymussel) (Plethobasus cooperianus), oyster mussel (Epioblasma capsaeformis), ring pink (mussel) (Obovaria retusa), rough pigtoe (Pleurobema plenum), shiny pigtoe (Fusconaia cor), and white wartyback (pearlymussel) (Plethobasus cicatricosus); 1 endangered aquatic snail: Anthony's riversnail (Athearnia anthonyi); 2 endangered fishes: duskytail darter (Etheostoma percnurum) and pygmy madtom (Noturus stanauli); and 3 fishes listed as threatened under section 4 of the Act: slender chub (Erimystax cahni), spotfin chub (=turquoise shiner) (Erimonax monachus), and yellowfin madtom (Noturus flavipinnis). We published the proposed rule for this action on June 13, 2006 (71 FR 34196). The species will be released into their historical habitat in the free-flowing reach of the French Broad River from below Douglas Dam to its confluence with the Holston River, Knox County, Tennessee, and in the free-flowing reach of the Holston River from below Cherokee Dam to its confluence with the French Broad River. Based on the evaluation of species experts, none of these 21 species currently exist in these river reaches or their tributaries. These species are being reintroduced under the authority of section 10(j) of the Act and would be classified as a nonessential experimental population