- Large head with flattened snout.
Reduced, vestigial eyes beneath the surface of the skin.
Bright red external gills.
Thin, elongate limbs; four toes on front feet, five on hind feet.
Finned tail tapering at tip.
Twelve costal grooves.
- White to pale pink with translucent skin.
Adult Eurycea rathbuni can measure between 9-13.5 cm (3.5-5.5 in) total length.
Eurycea rathbuni is restricted to Texas.
Eurycea rathbuni feeds on a variety of invertebrates, including shrimp, snails, and amphipods.
Little is known for Eurycea rathbuni, except that gravid females can be observed throughout the year.
Eurycea rathbuni is found in the subterranean streams of the Purgatory Creek system, and is only found above ground when water flow brings it to the surface.
The Texas Blind Salamander is considered an endangered species by the Texas Parks and Wildlife Department and is fully protected by the state. Additional protection has been afforded to this species as the U.S. Fish and Wildlife Service considers the Texas blind salamander to be a federally endangered species.
Eurycea rathbuni is found only in the Balcones Escarpment near San Marcos, Hays County.