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Crotalus oreganus. Crotalus oreganus, commonly known as the Western rattlesnake or northern Pacific rattlesnake, [4][5] is a venomous pit viper species found in western North America from the Baja California Peninsula to the southern interior of British Columbia.
The western diamondback rattlesnake[3] or Texas diamond-back[4] (Crotalus atrox) is a rattlesnake species and member of the viper family, found in the southwestern United States and Mexico. Like all other rattlesnakes and all other vipers, it is venomous. It is likely responsible for the majority of snakebite fatalities in northern Mexico and ...
Crotalus viridis. Crotalus viridis (Common names: prairie rattlesnake, [3][4] Great Plains rattlesnake, [5]) is a venomous pit viper species native to the western United States, southwestern Canada, and northern Mexico. Currently, two subspecies are recognized, including the prairie rattlesnake (Crotalus viridis viridis), the nominate ...
Rattlesnakes are venomous snakes that form the genera Crotalus and Sistrurus [1] of the subfamily Crotalinae (the pit vipers). All rattlesnakes are vipers. Rattlesnakes are predators that live in a wide array of habitats, hunting small animals such as birds and rodents. Rattlesnakes receive their name from the rattle located at the end of their ...
Western pygmy rattlesnake (Sistrurus miliarius streckeri), Wayne County, Missouri (13 April 2018) S. miliarius is a small species but bulky when it comes to width, [5] with adults usually growing to 40–60 cm (16–24 in) in total length (including tail). The maximum reported total length is 78.8 cm (31.0 in) (Klauber, 1972).
Pantherophis obsoletus, also known commonly as the western rat snake, black rat snake, pilot black snake, or simply black snake, [4] is a nonvenomous species of snake in the family Colubridae. The species is native to central North America. There are no subspecies that are recognized as being valid. [5] Its color variations include the Texas ...
Taxonomy and naming. The Great basin rattlesnake was first formally named by Laurence Monroe Klauber in 1930 as a subspecies of Crotalus confluentus (now known as Crotalus viridis). [5] It is commonly considered a subspecies of Crotalus oreganus. [6][4] The type locality is "10 miles northwest of Abraham on the Road to Joy, Millard County, Utah."
Crotalus helleri or Crotalus oreganus helleri, also known commonly as the Southern Pacific rattlesnake, [3] the black diamond rattlesnake, [4] and by several other common names, is a pit viper species [5] or subspecies [3] found in southwestern California and south into Baja California, Mexico, that is known for its regional variety of dangerous venom types.