Marques, Otavio A. V., e Ivan Sazima. “Ontogenetic Color Changes May Strengthen Suggestion about Systematic Affinities Between Two Species of Chironius (Serpentes, Colubridae)”. Phyllomedusa: Journal of Herpetology, vol. 2, nº 1, junho de 2003, p. 65-67, https://doi.org/10.11606/issn.2316-9079.v2i1p65-67.