Copperhead may refer to: Snakes: Agkistrodon contortrix, a venomous pit viper species found in parts of North America. Agkistrodon piscivorus, a.k.a. the cottonmouth, another venomous pit viper species found in North America. Austrelaps, a genus of venomous elapids found in southern Australia and Tasmania. Elaphe radiata, a.k.a. the copperhead rat snake, a non-venomous species found in southern Asia. Deinagkistrodon acutus, a.k.a. the Chinese copperhead, a venomous pit viper species found in Sou… (More on Copperhead)