Arizona Black Rattlesnake

Crotalus cerberus

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The Arizona black rattlesnake grows to about 42 inches including rattle. It comes in dark gray, brown to black base coloration with bloaches. Juveniles have a light gray…

How to identify

The Arizona black rattlesnake grows to about 42 inches including rattle. It comes in dark gray, brown to black base coloration with bloaches. Juveniles have a light gray base with facial markings and bold brown blotches. As the snake ages, its color gets darker. It has a slender neck and a broad triangular head. Its pupils are oval and placed vertically. The dorsal scale is collapsed and the bottom of the tongue is colored purple. At the tip of the tail is a series of keratinous sections composed of skin that was shed, interlocking loosely.

Range

The Arizona black rattlesnake is present only in the state of Arizona. It dwells in elevations about 4000 to 9000 ft.

Habitat

You will find the Arizona black rattlesnake in Semidesert Grasslands, rocky drainages and open rocky areas. They are diurnal and under favorable conditions are active at night. It hibernates during the cold months. The Arizona black rattlesnake feeds on rodents, lizards and birds. It injects venom into its prey via retractable long fangs. The have live births in summer and is capable of delivering large volumes of venom. When encountered, it should be left alone.

Similar species

Crotalus lepidus The rock rattlesnake never exceeds 32 inches and although the color varies, it is often reflective of its rocky gome. Crotalus horridus The timber rattlesnake grows to between 36 to 50 inches. It is usually light brown with dark wavy bands across its body. Crotalus mitchellii The speckled rattlesnake does not grow beyond 39 inches. It is usually brownish-gray with brown to red blotches across the full length of its body.