Vipera aspis atraVipera aspis atra is a venomous viper subspecies endemic to France, Switzerland and Italy.Geographic rangeIt is found in western Switzerland, northwestern Italy, Spain, and southeastern France. Mallow et al. describe the range only as "portions of Switzerland".Conservation statusThis subspecies is classified as Vulnerable according to the IUCN Red List of Threatened Species.TaxonomyA recent study by Ursenbacher et al. suggests that V. a. atra may not be a valid subspecies.