sand viper

n 1: highly venomous viper of North Africa and southwest 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}]