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Many temperate species of pit vipers (e.g. most rattlesnakes) congregate in sheltered areas or "dens" to overwinter (brumate, see hibernation), the snakes benefiting from the combined heat. In cool temperatures and while pregnant, pit vipers also bask on sunny ledges.
Timber rattlesnake, Crotalus horridus This is a list of all sure genera, species and subspecies of the subfamily Crotalinae, [1] otherwise referred to as crotalines, pit vipers, or pitvipers, and including rattlesnakes Crotalus and Sistrurus.
Agkistrodon piscivorus is a species of venomous snake, a pit viper in the subfamily Crotalinae of the family Viperidae. It is one of the world's few semiaquatic vipers (along with the Florida cottonmouth), and is native to the Southeastern United States. [5] As an adult, it is large and capable of delivering a painful and potentially fatal bite.
Bothrops is a genus of highly venomous pit vipers endemic to the Neotropics. [1] The generic name, Bothrops, is derived from the Greek words βόθρος, bothros, meaning ' pit ', and ὄψ, ops, meaning ' eye ' or ' face ', together an allusion to the heat-sensitive loreal pit organs.
Agkistrodon is a genus of pit vipers commonly known as American moccasins. [3] [4] The genus is endemic to North America, ranging from the Southern United States to northern Costa Rica. [2] Eight species are currently recognized, [5] [6] all of them monotypic and closely related. [7] Common names include: cottonmouths, copperheads, and cantils. [8]
Most species in the genus Trimeresurus are relatively small, primarily arboreal species, with thin bodies and prehensile tails. Most Trimeresurus species are typically green in color, but some species also have yellow, black, orange, red, or gold markings.
Gloydius cognatus, or the Alashan pitviper, is a species of Asian moccasin from North West China and Mongolia. As with all pit vipers it is venomous, and it is considered the most toxic species of Gloydius in China. [1] [2]
This is a list of all genera, species and subspecies of the subfamily Viperinae, otherwise referred to as viperines, true vipers, pitless vipers or Old World vipers. It follows the taxonomy of McDiarmid et al. (1999) [1] and ITIS. [2] Atheris, Bush vipers