Carpenter, C.C. 1982. The bullsnake as an excavator. Journal of Herpetology 16: 394-401.
Fitch, H.S. 1958. Home ranges, territories, and seasonal movement of vertebrates of the Natural History Reservation. University of Kansas Publications of the Museum of Natural History 11: 63-326.
Grismer, L.L. 1994. The origin and evolution of the peninsular herpetofauna of Baja California, Mexico. Herpetological Natural History 2: 51-106.
Grismer, L.L. 1996. Pituophis melanoleucus annectens: geographic distribution. Herpetological Review 27: 35.
Grismer, L.L. 1997. The distribution of Pituophis melanoleucus and P. vertebralis in northern Baja California, Mexico. Herpetological Review 28: 68-70.
Grismer, L.L. 2001. Comments on the taxonomy of gopher snakes from Baja California, Mexico: a reply to Rodríguez-Robles and de Jesús-Escobar Herpetological Review 32: 81-83.
Grismer, L.L. 2002. Amphibians and Reptiles of Baja California, Including its Pacific Islands and the Islands in the Sea of Cortés. University of California Press, Berkeley and Los Angeles, California.
IUCN. 2007. 2007 IUCN Red List of Threatened Species. Available at: www.iucnredlist.org. (Accessed: 12th September 2007).
Klauber, L.M. 1946. The gopher snakes of Baja California, with descriptions of three new subspecies of Pituophis catenifer. Transactions of the San Diego Society of Natural History 11: 1-40.
Knight, J.L. 1986. Variation in snout morphology in the North American snake Pituophis melanoleucus. Journal of Herpetology 20: 77-79.
Reichling, S.B. 1995. The taxonomic status of the Louisiana pine snake (Pituophis melanoleucus ruthveni) and its relevance to the evolutionary species concept. Journal of Herpetology 29: 186-198.
Rodríguez-Robles, J.A. 1998. Alternative perspectives on the diet of gopher snakes (Pituophis catenifer, Colubridae): literature records versus stomach contents of wild and museum specimens. Copeia 1998: 463-466.
Rodríguez-Robles, J.A. and de Jesús-Escobar, J.M. 2000. Molecular systematics of New World gopher, bull, and pinesnakes (Pituophis: Colubridae), a transcontinental species complex. Molecular Phylogenetics and Evolution 14: 35-50.
Schroder, R.C. 1950. Hibernation of blue racers and bull snakes in western Illinois. Natural History Miscellanea 75: 1-2.
Soulé, M. and Sloan, A.J. 1966. Biogeography and distribution of the reptiles and amphibians on islands in the Gulf of California, Mexico. Transactions of the San Diego Society of Natural History 14: 137-156.
Stebbins, R.C. 2003. A Field Guide to Western Reptiles and Amphibians. Third Edition. Houghton Mifflin Company, Boston, Massachusetts.
Stull, O.G. 1940. Variations and relationships in the snakes of the genus Pituophis. Bulletin of the United States National Museum 175: 1-225.
Sweet, S.S. and Parker, W.S. 1990. Pituophis melanoleucus. Catalogue of American Amphibians and Reptiles 474: 1-8.
Welsh, H.H. 1988. An ecogeographic analysis of the herpetofauna of the Sierra San Pedro Martir region, Baja California with a contribution to the biogeography of the Baja California herpetofauna. Proceedings of the California Academy of Science, 4th series 46: 1-72.
Welsh, H.H. and Bury, R.B. 1984. Additions to the herpetofauna of the south Colorado Desert, Baja California, with comments on the relationships of Lichanuria trivirgata. Herpetological Review 15: 53-56.
|Citation:||Hammerson, G.A. 2007. Pituophis catenifer. The IUCN Red List of Threatened Species. Version 2015.2. <www.iucnredlist.org>. Downloaded on 05 July 2015.|
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