The Texas Blind Salamander, Eurycea rathbuni, is a rare cave-dwelling troglobite amphibian native to San Marcos, Hays County, Texas, specifically the San Marcos Pool of the Edwards Aquifer. The salamander has blood-red external gills for absorbing oxygen from the water. The salamander's mature length is . Its diet varies by what flows into its cave, including shrimp, snails, and amphipods
- Database entry includes a range map, a brief justification of why this species is vulnerable, and the criteria used.
- (2000): Phylogenetic relationships of central Texas hemidactyliine plethodontid salamanders, genus Eurycea, and a taxonomic revision of the group. Herpetological Monographs 14: 1-80.
- (2001): A new species of subterranean blind salamander (Plethodontidae: Hemidactyliini: Eurycea: Typhlomolge) from Austin, Texas, and a systematic revision of central Texas paedomorphic salamanders. Herpetologica 57: 266-280.