What is "sand viper"

Hognosesnake \Hog"nose`snake"\ (Zo["o]l.) A harmless North American snake of the genus Heterodon, esp. Heterodon platyrhynos; -- called also puffing adder, blowing adder, and sand viper.

1. n. highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye [syn: horned viper, cerastes, horned asp, Cerastes cornutus]

2. harmless North American snake with upturned nose; may spread its head and neck or play dead when disturbed [syn: hognose snake, puff adder]

Sand viper may refer to:

• Vipera ammodytes, a.k.a. the nose-horned viper, a venomous species found in Europe through to the Balkans and parts of the Middle East.
• Cerastes vipera, a.k.a. the Avicenna viper, a venomous species found in the deserts of North Africa and the Sinai Peninsula.
• Heterodon, a.k.a. hog-nosed snakes, a genus of harmless colubrid species found in North America.