Primeiro registro de Erythrolamprus viridis (Günther, 1862) para o estado de Tocantins, no Cerrado brasileiro, com alguns comentários intrigantes da literatura

Abstract

The occurrence of the species Erythrolamprus viridis (Serpentes, Xenodontinae) was recorded for the first time in the state of Tocantins, Brazil, representing one of the rare records for the Cerrado, besides a range extension of 160 km southwest of previous limits. The specimen is an adult male, identified as E. viridis prasinus based on literature data and specimens examined by collaborators from other institutions. Additionally, the presumed restriction of this taxon to the Caatinga domain, previously suggested in the literature, was definitively refuted. Finally, we emphasize the need for a review study, not only of the E. viridis complex, but also including all taxa traditionally allocated to the “green” Liophis species to assess the validity of subspecific names and update the geographic limits and diagnoses of valid taxa.