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Crotalus is a genus of pit vipers, commonly known as rattlesnakes or rattlers, [2] ... Members of the genus Crotalus range in size from only 50–70 cm ...
Crotalus viridis, closeup of head. This species commonly grows to more than 100 cm (3.3 ft) in length. The maximum recorded size is 151.5 cm (4.97 ft). In Montana, specimens occasionally exceed 120 centimetres (3.9 ft) in length; the species reaches its maximum size in this region.
The timber rattlesnake (Crotalus horridus), ... In Pennsylvania, the smallest size females that could produce viable eggs was 72.2 cm (28.4 in). [16]
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 .
The scientific name Crotalus is derived from the Greek κρόταλον, meaning "castanet". [5] The name Sistrurus is the Latinized form of the Greek word for "tail rattler" (Σείστρουρος, seistrouros ) and shares its root with the ancient Egyptian musical instrument the sistrum , a type of rattle.
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.
Crotalus cerberus is a venomous pit viper species [3] [4] found in the southwestern United States. It is known as the Arizona black rattlesnake , black rattlesnake , and several other common names. [ 5 ]