- References
{{Speciesbox | image = | image_caption = | status = LC | status_system = IUCN3.1 | status_ref = [1] | genus = Thamnophis | species = scalaris | authority = Cope, 1861 }}The longtail alpine garter snake (Thamnophis scalaris) is a species of snake of the family Colubridae. It is found in Mexico. References 1. ^{{cite journal | title = Thamnophis scalaris | journal = IUCN Red List of Threatened Species | volume= 2007 | publisher = IUCN | year = 2007 | url = http://www.iucnredlist.org/details/63992/0 | accessdate = 27 December 2016}}
- {{EMBL species|genus=Thamnophis|species=scalaris}}
{{Taxonbar|from=Q3519536}}{{colubrid-stub}} 3 : Reptiles described in 1861|Reptiles of Mexico|Thamnophis |