Pereira Filho, Gentil Alves, and Giovanna Gondim Montingelli. 2011. “Check List of Snakes from the Brejos De Altitude of Paraíba and Pernambuco, Brazil”. Biota Neotropica 11 (3). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/842.