The southern dwarf siren, (Pseudobranchus axanthus) is a perennibranch salamander lacking hind legs.

Coloration is generally brown, black, or gray, with yellow or tan stripes on their backs and sides.

Distinguishing between P. axanthus and P. striatus is more difficult, requiring comparison of patterns with a field guide, known distribution, or a karyotype test.

P. axanthus prefers cypress ponds, ditches, swamps and marshes, and other aquatic and semiaquatic habitats.

Southern dwarf sirens eat a variety of food items, including small worms, chironomids, amphipods, and ostracods.