Crotalus angelensis, or the Ángel de la Guarda Island speckled rattlesnake,Klauber LM. 1997. Rattlesnakes: Their Habitats, Life Histories, and Influence on Mankind. Second Edition. 2 volumes. Reprint. University of California Press. Berkeley. . is a pit viper species endemic to Isla Ángel de la Guarda in the Gulf of California, Mexico. Like all other pitvipers, it is venomous. It is sometimes treated as a subspecies of Crotalus mitchellii.
Description Grows to a maximum size of .
Geographic range Found only on Isla Ángel de la Guarda in the Gulf of California, Mexico. The type locality given is "about southeast of Refugio Bay, at elevation, Isla Ángel de la Guarda, Gulf of California, Mexico (near 29°29½'N, 113°33'W)".
Habitat Gravelly beaches along the shore; rocky arroyos, washes, and on the hillsides of the island's interior, from sea-level up to 500 m.
Conservation status This species is classified as "Least Concern" (LC) on the IUCN Red List of Threatened Species. It occurs in a protected area and is very abundant within its small range.
References
Further reading Klauber, L.M. 1963. A new insular subspecies of the speckled rattlesnake. Trans. San Diego Soc. Nat. Hist. 13: 73-80.