The copperhead (Agkistrodon contortrix) is a venomous pit viper endemic to eastern North America; it is a member of the subfamily Crotalinae in the family Viperidae. As a common species within its range, it may be encountered by humans. Unlike other...
The Speckled kingsnake (Lampropeltis holbrooki) is a nonvenomous snake which is native to the United States. Its common name is derived from its pattern and this snake is also known as the "salt-and-pepper snake".
The western cottonmouth (Agkistrodon piscivorus leucostoma ) was once classified as a subspecies of the cottonmouth (Agkistrodon piscivorus ). However, DNA based studies published in 2008 and 2015, revealed no significant genetic difference between...
Pantherophis ramspotti, commonly known as the western fox snake, is a species of rat snake that is endemic to the upper midwestern United States, west of the Mississippi river. It is non-venomous.
Agkistrodon contortrix phaeogaster was formerly a venomous pit viper subspecies found in the central region of the United States. However, recent taxonomic changes do not recognizes the Osage copperhead (A. c. phaeogaster ) as a valid taxon.
Sistrurus catenatus tergeminus is a venomous pit viper subspecies found in the southwestern plains of the United States. In some areas its range overlaps that of another subspecies, S. c. edwardsii, and intergrading of the two is not unknown.
