Masticophis schotti ruthveni ORTENBURGER, 1923
| A note on the genera Coluber and Masticophis and a description of a new species of Masticophis A I Ortenburger (1923) Occ. Papers. Mus. Zool. Univ. Michigan, No 139: 1-14 | |
| First supplement to Typical reptiles and amphibians T Barbour and A Loveridge (1946) Bulletin of The Museum of Comparative Zoology 96: 59-214 | |
| 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 | |
| Herpetological type-specimens in the University of Illinois Museum of Natural History Hobart M Smith, David A Langebartel and Kenneth L Williams (1964) Illinois biological monographs 32: 1-80 | |
| The coachwhip snake Masticophis flagellum (Shaw): taxonomy and distribution Larry David Wilson (1971) Tulane Studies in Zoology and Botany 16(2): 31-99 |