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Rattlesnake skin has a set of overlapping scales that cover the entire body, providing protection from a variety of threats, including dehydration and physical trauma. [65] The typical rattlesnake, genus Crotalus, has the top of its head covered with small scales, except, with a few species, a few crowded plates directly over the snout. [66]
The dorsal scales are keeled [22] and arranged in 21–26 scale rows at midbody (usually 25 rows in the southern part of its geographic range, and 23 rows in the northern part). Timber rattlesnake at the San Diego Zoo, showing strongly keeled dorsal scales. The ventral scales number 158–177 in males and 163–183 in females.
Common names: pygmy rattlesnake, eastern pygmy rattlesnake, ground rattlesnake, leaf rattler, death rattler, more. [3] Sistrurus miliarius, commonly called the pygmy rattlesnake, is a species of venomous snake in the subfamily Crotalinae (pit vipers) of the family Viperidae. The species is endemic to the Southeastern United States.
Eastern diamondback rattlesnake at the Saint Louis Zoo Detail of rattle. The eastern diamondback rattlesnake is the largest rattlesnake species and is one of the heaviest known species of venomous snake, with one specimen shot in 1946 measuring 2.4 m (7.8 ft) in length and weighing 15.4 kg (34 lb).
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 .
There are three rattlesnake species in North Carolina: Timber “Canebrake” Rattlesnake, Eastern Diamondback Rattlesnake and the Carolina Pigmy Rattlesnake.
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.
4 Geographic range. 5 Diet. 6 Reproduction. ... It is known as the Arizona black rattlesnake, ... Crotalus cerberus at the National Park Service. Accessed 18 June 2008.