What is the Barton Springs salamander?
The Barton Springs salamander, Eurycea sosorum, is aquatic (does not metamorphose into a type that lives on land) and neotenic (keeps its set of bright red external gills instead of developing internal gills.) The salamander’s skin can vary in color from pale purple-brown to a yellowish cream. The adult salamander usually grows to 2.5 inches long. The Barton Springs salamander spends most of its life in the aquifer water underground. The only known surface habitats of the salamander are in Zilker Park in Barton Springs Pool, Eliza Springs, Sunken Garden Springs, and Upper Barton Springs. Barton Springs Salamander Brochure.