The Magazine Mountain Shagreen (photo by Ron Caldwell, Lincoln Memorial University) this year became the first invertebrate to be delisted under the Endangered Species Act! 
This tiny snail (its shell is only about 1/3 inch tall and 1/2 inch wide), which is only found in the highest parts of the Ozark mountains in Arkansas, likes cool, moist habitat in leaf litter. Listed as threatened in 1989, it is found in 27 locations on the mountain (covering roughly 22 acres). Check out this little dude on the move!
Sources:
Ashley, A. 2013. “Arkansas Snail Removed from Endangered Species List.” in NWA Hompage.com. Accessed online 7/2/2013. http://nwahomepage.com/fulltext?nxd_id=431562
U.S. Fish and Wildlife Service. 2012. “U.S. Fish and Wildlife Service Proposes Delisting of Magazine Mountain Shagreen – Another ESA Success Story Nears Completion.” Accessed online 7/2/2013. http://www.fws.gov/southeast/news/2012/034.html
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