"snail darter." YourDictionary, n.d. Web. 18 September 2018. <http://www.yourdictionary.com/snail-darter>.
snail darter. (n.d.). Retrieved September 18th, 2018, from http://www.yourdictionary.com/snail-darter
A small snail-eating darter (Percina tanasi) found only in Tennessee. A dam on the Little Tennessee River (completed in 1979) destroyed what had been the only known population of the fish, but it was later found in other locations.