Baird & Girard, 1853 : Catalogue of North American Reptiles in the Museum of the Smithsonian Institution. Part 1. Serpents. Smithsonian Institution, Washington, p. 1-172 (texte intégral).
Schmidt, 1940 : Notes on Texan snakes of the genus Salvadora. Publication. Field Museum of Natural History, vol. 24, no 12, p. 143-150 (texte intégral).