Passos, P., Fernandes, R. & Porto, M. (2005) Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae). Zootaxa, 1013 (1), 19–34.
https://doi.org/10.11646/zootaxa.1013.1.2