Masticophis aurigulus barbouri (VAN DENBURGH & SLEVIN 1921)
| Snakes of the islands in the Gulf of California, Mexico Frank S Cliff (1954) Transactions of the San Diego Society of Natural History 12(5): 67-98 | |
| The coachwhip snake Masticophis flagellum (Shaw): taxonomy and distribution Larry David Wilson (1971) Tulane Studies in Zoology and Botany 16(2): 31-99 |