Zaher, Hussam, Gustavo Scrocchi, and Roberta Masiero. 2008. “Rediscovery and Redescription of the Type of Philodryas laticeps Werner, 1900 and the Taxonomic Status of P. oligolepis Gomes, 1921 (Serpentes, Colubridae)”. Zootaxa 1940 (1). Auckland, New Zealand:25–40. https://doi.org/10.11646/zootaxa.1940.1.3.