BioStor
Thamnophis scalaris COPE 1861
 | Descriptions of reptiles from tropical America and Asia E D Cope (1860) Proc. Acad. Nat. Sci. Philadelphia 1860: 368-374 |
 | 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 |
 | The herpetological fauna of the Salama Basin, Baja Verapaz, Guatemala K P Schmidt and L C Stuart (1941) Field Museum of Natural History Publication. Zoological Series 24(21): 233-247 |
 | Summary of the collections of snakes and crocodilians made in M H M Smith (1943) Proc. U. S. Nat. Mus 93: 393-504 |
 | Comparative visceral topography of the new world snake tribe Thamnophiini (Colubridae, Natricinae) N J Rossman, D A Rossman and N K Keith (1982) Tulane Studies in Zoology and Botany 23: 123-164 |
 | Redescription of the garter snake Thamnophis exsul Rossman, 1969 (Serpentes: Colubridae) D A Rossman, E A Liner et al. (1989) Proc. Biol. Soc. Wash 102: 507-514 |