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Long-nosed snake Colubridae: Sonora semiannulata: Western Ground snake Colubridae: Tantilla hobartsmithi: Southwestern blackhead snake Colubridae: Tantilla nigriceps * Plains blackhead snake Colubridae: Thamnophis cyrtopsis: Blackneck garter snake Colubridae: Thamnophis elegans: Western terrestrial Garter snake Colubridae: Thamnophis proximus ...
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."
Chionactis occipitalis annulata. (Baird, 1859) Sonora annulata, also known commonly as the Colorado Desert shovelnose snake, is a species of snake in the subfamily Colubrinae of the family Colubridae. [1] The species is native to the southwestern United States and adjacent northwestern Mexico. There are two recognized subspecies.
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.
Colorado Desert sidewinder. This form of Crotalus cerastes has the following distinguishing characteristics: the proximal rattle-matrix lobe is black in adult specimens, the ventral scales number 137–151/135–154 in males/females, the subcaudals number 19-26/14-21 in males/females, and there are usually 23 rows of midbody dorsal scales.
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 ...
This is a list of extant snakes, given by their common names. Note that the snakes are grouped by name, and in some cases the grouping may have no scientific basis. Contents:
Description. The western hognose snake is a relatively small, stout-bodied snake. Its color and pattern is highly variable between subspecies, although most specimens appear much like rattlesnakes to the untrained eye, which appears to be Batesian mimicry. Males are considerably smaller than females, with adults rarely exceeding a total length ...