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The western yellow-bellied racer (Coluber constrictor mormon), [1] also known as the western yellowbelly racer[2] or western racer, [1] is a snake subspecies endemic to the Western United States, including California, Oregon, Washington, Idaho, Nevada, New Mexico, Utah, Montana and Colorado. [3][4] It is a subspecies of the eastern racer.
The United States in the Great Basin region. Its range includes Idaho south of lat. 44° North, Utah west of long. 111° West, Arizona west and north of the Colorado River as well as the north rim of the Grand Canyon, the entire state of Nevada (excluding Esmeralda, Nye and Clark counties), California east of the Sierra Nevada from Lower Klamath Lake south to below Lake Mono, Oregon south and ...
Species in this list are grouped by order and then by family within each order. The common name for each species is followed by its binomial name. The following codes are used to designate some species: EN - Species is listed as endangered by the IUCN. NT - Species is listed as near threatened by the IUCN.
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 ...
Crotalus cerastes, known as the sidewinder, horned rattlesnake or sidewinder rattlesnake, [3] is a pit viper species belonging to the genus Crotalus (the rattlesnakes), and is found in the desert regions of the Southwestern United States and northwestern Mexico. Like all other pit vipers, it is venomous. Three subspecies are currently recognized.
Per one study, the average total length of females was 81.4 cm (2 ft 8 in), while that of males was 69.6 cm (2 ft 3 + 1 ⁄ 2 in). [7] From known studies of this species in the wild, adult females can weigh between 159 and 408 g ( 5 + 1 ⁄ 2 and 14 + 1 ⁄ 2 oz) typically, while the smaller male can range from 80.8 to 151 g ( 2 + 7 ⁄ 8 to 5 ...
Adult eastern racers can typically vary from 50 to 152 cm (20 to 60 in) in total length (including tail) depending on the subspecies, but a record-sized specimen measured 185.4 cm (73.0 in) in total length. [4] [5] [6] A typical adult specimen will weigh around 556 g (1.226 lb), with little size difference between the sexes. [7]
Category:Lists of snakes of the United States. Lists of snakes of the United States — lists of snake species that are native in U.S. states. Note: Articles on individual snakes should be listed in Category: Reptiles of the United States + Category: Snakes of North America + regional U.S. fauna categories.