horned viper, cerastes, sand viper, horned asp, Cerastes cornutus
['bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis', 'ptarmigan', 'muzzle', 'rock crab, Cancer irroratus', 'grey fox, gray fox, Urocyon cinereoargenteus', 'quail', 'harvestman, daddy longlegs, Phalangium opilio']