Robert W. Bryson Jr., Jennifer Pastorini, Frank T. Burbrink, Michael R.J. Forstner: A phylogeny of the Lampropeltis mexicana complex (Serpentes: Colubridae) based on mitochondrial DNA sequences suggests evidence for species-level polyphyly within Lampropeltis. In: Molecular Phylogenetics and Evolution. Band43, 2007, S.674–684 (englisch, Volltext [PDF]).
