Aspidoras mephisto
Aspidoras mephisto is a species of freshwater ray-finned fish belonging the family Callichthyidae, the armoured catfishes, and the subfamily Corydoradinae, the corys. This species is found in South America where it is endemic to the Anésio-Russão cave system in the upper Tocantins River basin in Goiás, Brazil. This fish is the first species of armoured catfish that is troglobitic.