Who is the red-bearded snake, anyway? Clarifying the taxonomic status of Chironius pyrrhopogon (Wied, 1824) (Serpentes: Colubridae) - Sudré, Vivícius; Curcio, Felipe Franco; Nunes, Pedro M. Sales; Pellegrino, Laura E; Rodrigues, Miguel Trefaut (Zootaxa, 2017)