Leptophis mexicanus, commonly known as the Mexican parrot snake, is a species of medium-sized slender snake in the familyColubridae. The species is endemic to the Americas.
^Boulenger GA (1894). Catalogue of the Snakes in the British Museum (Natural History). Volume II., Containing the Conclusion of the Colubridæ Aglyphæ. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers.) xi + 382 pp. + Plates I-XX. (Leptophis mexicanus, pp. 108-109).
Duméril A-M-C, Bibron G, Dumeril A[-H-A] (1854). Erpétologie générale ou histoire naturelle complète des reptiles, Tome septième. Première partie. Comprenant l'histoire des serpents non venimeux. Paris: Roret. xvi + 780 pp. (Leptophis mexicanus, new species, pp. 536–537). (in French).
Henderson RW (1976). "A New Insular Subspecies of the Colubrid Snake Leptophis mexicanus (Reptilia, Serpentes, Colubridae) from Belize". J. Herpetology10 (4): 329–331. (Leptophis mexicanus hoeversi, new subspecies).
Liner, Ernest A. (2007). "A Checklist of the Amphibians and Reptiles of Mexico". Louisiana State University Occasional Papers of the Museum of Natural Science80: 1-60.
Mertens R (1972). "Eine neue Schlankatter der Gattung Leptophis aus Mexico ". Senckenbergiana Biologica53 (5-6): 341–342. (Leptophis mexicanus septentrionalis, new subspecies). (in German).
Oliver JA (1942). "A check list of the snakes of the genus Leptophis, with descriptions of new forms". Occ. Pap. Mus. Zool. Univ. Michigan (462): 1–19. (Leptophis mexicanus yucatanensis, new subspecies, p. 10).