What is "hognose snake"

n. 1 A colubrid snake, from any of three genera, characterized by an upturned snout and notorious for playing dead when threatened. 2 # (taxlink Heterodon genus noshow=1) (United States and northern Mexico) 3 # (taxlink Leioheterodon genus noshow=1) (Madagascar) 4 # (taxlink Lystrophis genus noshow=1) (South America)

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