Types of Rattlesnakes

Crotalus aquilus is a venomous pit viper species found in the highlands of central Mexico. No subspecies is currently recognized. The specific name, aquilus, is Latin for "eagle" and refers to the high altitude at which this species is found.

Common names: Mexican west coast rattlesnake, Mexican green rattler, more Crotalus basiliscus is a venomous pit viper species found in western Mexico. The specific name is derived from the Greek word for king, basiliskos, and alludes to this snake's large size and potent venom.

Crotalus catalinensis is a species of venomous pit viper endemic to Isla Santa Catalina in the Gulf of California just off the east coast of the state of Baja California Sur, Mexico. No subspecies are currently recognized.

Common names: South American rattlesnake, tropical rattlesnake, more. Crotalus durissus is a venomous pit viper species found in South America. The most widely distributed member of its genus, this species poses a serious medical problem in many parts of its range.

Common names: Baja California rattlesnake, Lower California rattlesnake. Crotalus enyo is a venomous pit viper species native to the coast and islands of northwestern Mexico. Three subspecies are currently recognized, including the nominate subspecies described here.

Common name: Mexican small-headed rattlesnake Crotalus intermedius is a venomous pit viper species found in central and southern Mexico. Three subspecies are currently recognized, including the nominate subspecies described here.

C. lannomi is found in western Mexico in Jalisco and Colima. The type locality is "1.8 miles west of the pass, Puerto Los Mazos, or 22 miles west by road from the Río Tuxcacuesco, a branch of the Río América on Mexican Highway No. 80, Jalisco, Mexico".

Common names: black-tailed rattlesnake, green rattler, Northern black-tailed rattlesnake. Crotalus molossus is a venomous pit viper species found in the southwestern United States and Mexico. Four subspecies are currently recognized, including the nominate subspecies described here.

Common names: twin-spotted rattlesnake, western twin-spotted rattlesnake, more. Crotalus pricei is a venomous pit viper species found in the United States and Mexico. Currently, two subspecies are recognized, including the nominate subspecies described here.

Common name: Tancitaran dusky rattlesnake. Crotalus pusillus is a venomous pit viper species found in west-central Mexico. No subspecies is currently recognized.

Crotalus simus – Quijada-Mascareñas & Wüster, 2006 Common names: Middle American rattlesnake, Central American rattlesnake, tzabcan (local name for subspecies C. s. tzabcan) Crotalus simus is a venomous pit viper species found in Mexico and Central America.

Crotalus stejnegeri is a venomous pit viper species found in western Mexico. No subspecies is currently recognized.

Common names: tiger rattlesnake, tiger rattler. The tiger rattlesnake, Crotalus tigris, is a highly venomous pit viper species found in the southwestern United States and northwestern Mexico. No subspecies are currently recognized.

Common names: Tortuga Island diamond rattlesnake, Tortuga Island rattlesnake. Crotalus tortugensis is a venomous pit viper species found only on Tortuga Island in the Gulf of California. No subspecies are currently recognized.

Common name: Totonacan rattlesnake Crotalus totonacus is a venomous pit viper species found in northeastern Mexico.No subspecies are currently recognized.

Common names: Cross-banded mountain rattlesnake. Crotalus transversus is a venomous pit viper species found in central Mexico, known from less than 20 specimens. No subspecies are currently recognized.

The Dusky Pigmy Rattlesnake is the most common venomous snake in Florid, and is responsible for more human snakebite than any other snake. It is found throughout the state. Also known as the ground rattler, the snake is grey in color with black blotches all over its body, including the underside.

Common names: eastern diamondback rattlesnake, eastern diamondback, more. Crotalus adamanteus is a pit viper species found in the southeastern United States. It is the heaviest, though not the longest venomous snake in the Americas and the largest rattlesnake. No subspecies are currently recognized.

Isla Angel de la Guarda Rattlesnake - Crotalus angelensis Klauber, 1963 Click on a picture for a larger view: Adult, Isla Angel de la Guarda ... Rattlesnakes: Sounds:

The massasauga (Sistrurus catenatus) is a rattlesnake species found in midwestern North America from southern Ontario to northern Mexico, and parts of the United States in between. Three subspecies are currently recognized including the nominate subspecies described here.

Crotalus. Crotalus adamanteus, Eastern diamondback rattlesnake; Crotalus aquilus, Queretaran dusky rattlesnake; Crotalus atrox, Western diamondback rattlesnake; Crotalus basiliscus, Mexican west coast rattlesnake; Crotalus catalinensis, Catalina Island rattlesnake; Crotalus cerastes, Sidewinder . Crotalus cerastes cerastes, Mojave desert sidewinder; Crotalus cerastes cercobombus, Sonoran ...

Crotalus scutulatus (common names: Mojave rattlesnake, Mojave green,) is a highly venomous pit viper species found in the deserts of the southwestern United States and central Mexico. It is perhaps best known for its potent neurotoxic-hemotoxic venom, which is considered the world's most potent rattlesnake venom.

Crotalus willardi willardi is known from the Huachuca, Santa Rita, Canelo, Patagonia, and Whetstone ranges. Within Arizona Crotalus willardi obscurus is found only in the Peloncillo Mountains. HABITAT: The Ridge-nosed Rattlesnake is usually encountered within Madrean Evergreen Woodland or Petran Montane Conifer Forest communities.

This subspecies, Crotalus oreganus oreganus - Northern Pacific Rattlesnake, is found in California from Santa Barbara county, where it intergrades with the Southern Pacific Rattlesnake, east to the Sierras, and north from the coast to the Sierras and west of the Cascades ranges.

Fast Facts: Prairie rattlesnake. Species name: Crotalus viridis viridis Average length: 89 cm to 114 cm Life expectancy: 16-20 years. Did you know? The prairie rattlesnake is the only venomous snake in the Canadian prairies. Physiology. The prairie rattlesnake is the only venomous snake in the Canadian prairies.

Biology: The pigmy rattlesnake (sistrurus miliarius) is a venomous snake that is native to the southeastern continental United States. Pigmy rattlesnakes also go under the names spottled rattler, spotted rattlesnake, pigmy ground rattlesnake, ground rattler, grey rattlesnake, bastard rattlesnake, southern rattlesnake, dwarf rattlesnake and small rattlesnake.

Red diamond rattlesnakes are found in the United States in southwestern California and southward through the Baja California peninsula, although not in the desert east of the Sierra de Juárez in northeastern Baja California.

Banded rock rattlesnakes use venom to subdue their prey before swallowing it whole. Banded rock rattlesnakes are a small- to medium-sized species, typically reaching 60 to 70 centimeters (23 to 27 inches) in length, though some males may exceed 80 centimeters (31 inches). Males tend to be larger ...

Sidewinder rattlesnakes are venomous, but of little threat to humans, except for young children. The toxin is capable of killing an animal weighing up to 30 pounds; in a larger animal or grown human, it typically causes transient pain, swelling, and general symptoms of illness.

Common names: Mexican pigmy rattlesnake, Mexican pygmy rattlesnake, more. Sistrurus ravus is a venomous pit viper species, found only in Mexico. Three subspecies are currently recognized, including the nominate subspecies described here.

SPECKLED RATTLESNAKE Crotalus mitchellii Venomous DESCRIPTION: A large rattlesnake (up to 1,295 mm or 51" in total length excluding rattle) with extremely variable coloration.

The timber rattlesnake, canebrake rattlesnake or banded rattlesnake (Crotalus horridus), is a species of venomous pit viper endemic to the eastern United States.

The western diamondback rattlesnake or Texas diamond-back (Crotalus atrox) is a venomous rattlesnake species found in the southwestern United States and Mexico. It is likely responsible for the majority of snakebite fatalities in northern Mexico and the greatest number of snakebites in the U.S. No subspecies are currently recognized.