- genus Cerastes, Aspis, genus Aspis - horned vipers
--1 is a kind of reptile genus
--1 is a member of Viperidae, family Viperidae
--1 has members:horned viper, cerastes, sand viper, horned asp, Cerastes cornutus
| horned viper, cerastes, sand viper, horned asp, Cerastes cornutus |