BioStor
Thamnophis cyrtopsis KENNICOTT 1860
 | On the Reptilia and Batrachia of the Sonoran Province of the Nearctic Region E D Cope (1867) Proceedings of the Academy of Natural Sciences of Philadelphia 18: 300-314 |
 | Notes on the geographical distribution of batrachia and reptilia in western North America E D Cope (1883) Proc. Acad. Nat. Sci. Philadelphia 35: 10-35 |
 | A critical review of the characters and variations of the snakes of North America E D Cope (1892) Proc. US Natl. Mus. 14: 589-694 |
 | A Review of the Genera and Species of American Snakes, North of Mexico Arthur Erwin Brown (1901) Proceedings of The Academy of Natural Sciences of Philadelphia 53: 10-110 |
 | Notes on the herpetology of New Mexico, with a list of species known from that state John Van Denburgh (1924) Proceedings of the California Academy of Sciences 13: 189-230 |
 | Notes on the Herpetological fauna of the Mexican state of Sonora E H Taylor (1936) University of Kansas Science Bulletin 24: 475-503 |
 | Amphibians and reptiles of the Big Bend Region of Texas K P Schmidt and T F Smith (1944) Field Museum of Natural History Publication. Zoological Series 29: 75-96 |
 | Fourth contribution to the herpetology of San Luis Potosà E H Taylor (1953) University of Kansas Science Bulletin 35: 1587-1614 |
 | Type specimens of reptiles and amphibians in the United States National Museum (1961) Bulletin of the United States National Museum 220: 1-291 |
 | The amphibians and reptiles of Sinaloa, Mexico L M Hardy and And R W Mcdiarmid (1969) University of Kansas Publications. Museum of Natural History 18: 39-252 |
 | Catalogue of the Neotropical Squamata. Part I. Snakes James A Peters and Braulio Orejas-Miranda (1970) Bulletin United States National Museum 297: 1-347 |