Zaher, Hussam, et al. “ Redescription of Atractus Albuquerquei (Serpentes: Colubridae: Dipsadinae), With Comments on Geographical Distribution and Intraspecific Variation ”. Papéis Avulsos De Zoologia, vol. 45, no. 2, Jan. 2005, pp. 19-32, https://doi.org/10.1590/S0031-10492005000200001.