PASSOS, P.; PRUDENTE, A. L. C. Morphological variation, polymorphism, and Taxonomy of the Atractus torquatus complex (Serpentes: Dipsadidae). Zootaxa, Auckland, New Zealand, v. 3407, n. 1, p. 1–21, 2012. DOI: 10.11646/zootaxa.3407.1.1. Disponível em: https://mapress.com/zt/article/view/zootaxa.3407.1.1. Acesso em: 19 apr. 2025.