Albuquerque, N. R. de. “The Identity of Apostolepis Pymi and Placement of A. Quinquelineata in the Synonymy of A. Nigrolineata (Serpentes, Xenodontinae)”. Biota Neotropica, vol. 10, no. 1, Mar. 2010, //www.biotaneotropica.org.br/BN/article/view/627.