Passos, Paulo, Mauro TeixeirA Junior, Renato S. Recoder, Marco Aurélio de Sena, Francisco Dal Vechio, Hugo Bonfim de A. Pinto, Sônia H.S.T. Mendonça, José Cassimiro, and Miguel Trefaut Rodrigues. 2013. “ A New Species of Atractus (Serpentes: Dipsadidae) from Serra Do Cipó, Espinhaço Range, Southeastern Brazil, With Proposition of a New Species Group to the Genus ”. Papéis Avulsos De Zoologia 53 (6): 75-85. https://doi.org/10.1590/S0031-10492013000600001.