Northern Dwarf Siren, Pseudobranchus striatus
Source: http://cars.er.usgs.gov/herps/Salamanders/P_striatus/p_striatus.html

Source: https://commons.wikimedia.org/wiki/File:P_striatus_USGS.jpg

The northern dwarf siren (Pseudobranchus striatus) is a perennibranch salamander lacking hind legs. Found in the Southeastern United States, it one of two currently recognized species of dwarf sirens. Three subspecies are currently recognized; P. s. striatus, the broad-striped dwarf siren, P. s. lustricolus, the Gulf Hammock dwarf siren, and P. s. spheniscus, the slender dwarf siren. Order: Caudata, Suborder: Sirenoidea, Family: Sirenidae, Species: Pseudobranchus striatus (LeConte, 1824)