The most distinctive feature of this adder is the presence of a small erect scale situated above each eye. If molested they become very agitated, hissing and striking repeatedly. They often burrow just beneath the surface of the sand. Buries itself in sand by wriggling or shuffling until concealed; only top of head, eyes and little horns exposed.
Lizards, geckos and small rodents.
Number of eggs
Viviparous. 4-8 young, 100-150 mm long, born late summer.
Predatory birds, other snakes and humans.
Dry sandy regions in Namib Desert, Karoo and arid savanna.