BioStor
 | The genus of Teiid lizards, Verticaria Cope, 1869, considered as a synonym of Cnemidophorus Wagler, 1830, with a key to the primitive genera of the Teiidae Charles E Burt Proceedings of the Biological Society of Washington 42: 153-156 |
 | Reptilium conspectus quae in republica Peruana reperiuntur er pleraque observata vel collecta sunt in itenere J J Von Tschudi (1845) Archiv für Naturgeschichte 11(1): 150-170 |
 | An annotated checklist and key to the snakes of Mexico H M Smith and E H Taylor (1945) US Natl. Mus. Bull. 187: 1-239 |