| hognose snake | (n) harmless North American snake with upturned nose; may spread its head and neck or play dead when disturbed, Syn. sand viper, puff adder |
| horned viper | (n) highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye, Syn. horned asp, cerastes, sand viper, Cerastes cornutus |