Crotalus oreganus caliginis

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Crotalus oreganus caliginis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Crotalinae
Genus: Crotalus
Species: C. oreganus
Subspecies: C. o. caliginis
Trinomial name
Crotalus oreganus caliginis
Klauber, 1949
Crotalus caliginis distribution.png
  • Crotalus viridis caliginis
    Klauber, 1949[1]
  • Crotalus oreganus caliginis
    – Ashton & de Queiroz, 2001[2]
Common names: Coronado Island rattlesnake.[3]

Crotalus oreganus caliginis is a venomous pitviper subspecies[4] endemic to South Coronado Island, Mexico.


Adults grow to a maximum size of 68.3 cm (26 78 in).[3]

Geographic range[edit]

Known only from the type locality,[3] given as "South Coronado Island, off the northwest coast of Baja California, Mexico."[1]

Conservation status[edit]

This species is classified as Least Concern (LC) on the IUCN Red List of Threatened Species (v3.1, 2001).[5] Species are listed as such due to their wide distribution, presumed large population, or because it is unlikely to be declining fast enough to qualify for listing in a more threatened category. The population trend is stable. Year assessed: 2007.[6]

See also[edit]


  1. ^ a b McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1. Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  2. ^ Ashton KG, de Queiroz A. 2001. Molecular systematics of the western rattlesnake, Crotalus viridis (Viperidae), with comments on the utility of the d-loop in phylogenetic studies of snakes. Molecular Phylogenetics and Evolution, Vol. 21, No.2, pp. 176-189. PDF at CNAH. Accessed 3 September 2008.
  3. ^ a b c Klauber LM. 1997. Rattlesnakes: Their Habitats, Life Histories, and Influence on Mankind. Second Edition. 2 volumes. Reprint, University of California Press, Berkeley. ISBN 0-520-21056-5.
  4. ^ "Crotalus oreganus caliginis". Integrated Taxonomic Information System. Retrieved 13 September 2007. 
  5. ^ Crotalus caliginis at the IUCN Red List. Accessed 13 September 2007.
  6. ^ 2001 Categories & Criteria (version 3.1) at the IUCN Red List. Accessed 13 September 2007.

External links[edit]