Chthonerpeton perissodus is a species of caecilian in the family Typhlonectidae. It is endemic to Minas Gerais, Brazil, and only known from its imprecise type locality, Rio Pandeiro. Only three specimens are known. The common name Minas Gerais caecilian has been coined for this species. Description The type series consists of three specimens. The holotype is an adult male measuring in total length. One paratype is a female, either maturing or mature, measuring , whereas the other one is poorly preserved and of unknown sex, measuring about . The body is dorsoventrally flattened and wide. There are 95–101 primary annuli (segments). The head is bluntly rounded. The eyes are dorsolaterally oriented and covered by epidermis. The coloration is relatively uniform, slate gray dorsally and slightly lighter ventrally. There are numerous whitish skin glands present throughout the body. The specific name perissodus refers to the high number of premaxillary-maxillary teeth compared to other Chthonerpeton and is derived from Greek (=more than the usual number of) and (=tooth). Habitat and conservation The type locality of this species is imprecise, and there is no information on its habitat. Presumably, it is an aquatic species that reproduces through viviparity. Population status and threats it are unknown. References perissodus Amphibians of Brazil Endemic fauna of Brazil Amphibians described in 1987 Taxonomy articles created by Polbot