Crotalus oreganus caliginis

The lateral view of a king cobra's skull showing fangs

Venomous pit viper subspecies endemic to South Coronado Island, Mexico.

- Crotalus oreganus caliginis

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Coronado Islands

The Coronado Islands (Islas Coronado or Islas Coronados; Islands of the Coronation(s); Kumeyaay: Mat hasil ewik kakap) are a group of islands located 13 km off the northwest coast of the Mexican state of Baja California.

A map of the four Coronado Islands
At the US-Mexico border. The visible islands are Islas Coronados
The archipelago was first noted by European explorers as "desert islands"
The islands visible from the Mexican mainland
L. Ron Hubbard, future founder of Scientology, bombarded South Island in 1943, despite it being inhabited by Mexican soldiers
Although landing on the islands is not permitted, divers, fishermen and tourists are free to visit the waters around them
Bergerocactus emoryi on a ridge on North Coronado
Calochortus splendens on the islands
Dudleya lanceolata, a succulent plant also present on the mainland
An endemic succulent, Dudleya candida, with Opuntia species
Dudleya candida (the white rosettes with yellow flowers on red stems) with an assemblage of other plants
Dudleya candida in habitat

The best known is the Coronado rattlesnake (Crotalus oreganus caliginis), which is a smaller subspecies than the one found on the mainland.

Crotalus viridis

Venomous pit viper species native to the western United States, southwestern Canada, and northern Mexico.

Crotalus viridis, closeup of head
Prairie rattlesnake (Crotalus v. viridis), Hidalgo County, New Mexico (5 Sep 2014)
A Hopi rattlesnake (Crotalus viridis nuntius) in a defensive posture
A juvenile Hopi rattlesnake (Crotalus viridis nuntius) in captivity

Previously, seven other C. viridis subspecies were also recognized, including C. v. abyssus, C. v. caliginis, C. v. cerberus, C. v. concolor, C. v. helleri, C. v. lutosus and C. v. oreganus.

List of crotaline species and subspecies

List of all sure genera, species and subspecies of the subfamily Crotalinae, otherwise referred to as crotalines, pit vipers, or pitvipers, and including rattlesnakes Crotalus and Sistrurus.

Timber rattlesnake, Crotalus horridus

Crotalus oreganus caliginis, Coronado Island rattlesnake

List of snakes by common name

List of extant snakes, given by their common names.

Approximate world distribution of snakes

Coronado Island rattlesnake