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However, rattlesnakes will not always rattle, and this one certainly did not. [7], Sexually mature females bear live young in broods of 4 to 21 neonates. Black Rattlesnake, Black Diamond Rattlesnake, Cerberus Rattlesnake, Mountain Diamond-back, Brown Rattlesnake, Dark grayish, brownish black, blackish or reddish brown ground color covered with dorsal pattern of uneven patches that are rectangular near the front of the body turning subhexagonal towards the back, Mountains, upland areas, semidesert grassland, Amphibians, reptiles, birds and their eggs, mammals, Ovoviviparous (producing young ones by means of eggs hatched inside the body of the parent). [9] Some adults can change color relatively quickly (physiological color change: rapid change due to movement of organelles within chromatophores),[9] an ability shared not only with chameleons and other lizards but also with other snakes such as some species in the genus Tropidophis. Instead it coiled itself up into a tight, defensive coil, puffing itself up and arching its back to make itself look more threatening to us. Instead of crawling away, the furious Arizona Black Rattlesnake struck the douglas-fir cone fast and hard. Also found at Steeple Rock, in extreme western New Mexico. Comstock Publishing Associates, Ithaca and London. After it tired of bothering the rattlesnake, the Yellow-eyed Junco perched sullenly on a tree branch above the rattlesnake and kept glaring at it. You may skip to content, Southeastern Arizona Wildflowers and Plants. Females remain with their young in nests for 7 to 14 days, and mothers have been observed cooperatively parenting their broods. [5] Also often incorrectly referred to as a timber rattlesnake. Arizona Black Rattlesnakes were initially considered to be a subspecies of the Prairie Rattlesnake (formerly the Western Rattlesnake) and were known as C. viridis cerberus. Article was last reviewed on 13th June 2019. Juvenile Arizona Black Rattlesnakes look more like our other Arizona rattlesnakes and are light gray with dark-edged brown blotches. Arizona Black Rattlesnakes (Crotalus cerberus), This is a sidebar. Since our Douglas-fir cones were just going to be bitten and wouldn't work to budge the rattlesnake, my dad then went off and found a long, semi-burnt branch and unceremoniously shoved the ungrateful Arizona Black Rattlesnake off of the edge of the road and back into the relative safety of the woods. When on the ground near the rattlesnake, the Yellow-eyed Junco hopped and fluttered about in a strange, nervous, jerky fashion. 2 volumes. In July of 2007, we observed this adult Arizona Black Rattlesnake on a dirt road near Summerhaven, Arizona in the Santa Catalina Mountains at about 8200 feet (2500 m) in elevation. Crotalus cerberus is a medium to large rattlesnake with black blotches on a dark gray-brown to black background.
Arizona Black Rattlesnakes (Crotalus cerberus) are almost exclusively found in the mountains and upland areas of Arizona, with only a small part of their population range extending into far west-central New Mexico.
Young have prominent brown blotches and facial markings on a light gray background. Seeing that the rattlesnake show was over, the Yellow-eyed Junco decided to leave then as well. "Molecular systematics of the western rattlesnake, "The pituitary regulation of melanophores in the rattlesnake", "Family values: Maternal care in rattlesnakes is more than mere attendance", https://en.wikipedia.org/w/index.php?title=Crotalus_cerberus&oldid=984379399, Taxonbars using multiple manual Wikidata items, Creative Commons Attribution-ShareAlike License, This page was last edited on 19 October 2020, at 20:15. [7], The color pattern consists of a dark grayish, brownish black, reddish brown, or blackish ground color, overlaid with a dorsal pattern of blotches that are rectangular anteriorly, becoming subhexagonal posteriorly, eventually becoming crossbands just before the tail. McDiarmid RW, Campbell JA, Touré T. 1999. Coloration gradually darkens as the animal ages. ARIZONA BLACK RATTLESNAKE Crotalus cerberus: Venomous : DESCRIPTION: A medium to large (up to 1,062 mm or 42" in total length excluding rattle) rattlesnake with black blotches on a dark gray-brown to black background. Sexually mature females bear live young in broods of 4 to 21 neonates. Near Tucson, Arizona, these snakes can be found in the Santa Catalina and Rincon Mountains, generally from the middle to high elevations. Arizona black rattlesnake is a poisonous subspecies of snake occurring in the southwestern United States. 1. Coloration gradually darkens as the animal ages.
A postocular stripe is evident in lightly colored specimens, but not so much in darker ones. Required fields are marked *. The Arizona black rattlesnake is the first species of snake observed to exhibit complex social behavior , and like all temperate pit vipers, care for their babies. They have darker, saddle-shaped blotches interspersed with yellow to white crossbars along their back and light-colored rattles that contrast strongly with their overall dark coloration. The juveniles' color darkens to blackish as they age. Like other pitvipers, the snake makes use of heat sensing pits located on each side of the face to detect prey and predators. 511 pp.
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