occur only in North and South America and range from sea level to approximately 11,000 feet (over 3,000 m) in California and 14,000 feet (4,000 m) in Mexico (Klauber, 1997). The name Sisturus is a Latinized term derived from the Greek word “tail rattler” (Wright, 1957). Rattlesnakes that belong to this genus include the Massasauga and Pigmy rattlesnakes. The name Crotalus, for the second group of rattlesnakes, is derived from the Greek word Krotalon which means “rattle” or “castanet” (Klauber, 1997)…
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