Crotalus angelensis

Crotalus angelensis, or the Ángel de la Guarda Island speckled rattlesnake,[3] is a pitviper species[4][5] endemic to Isla Ángel de la Guarda in the Gulf of California, Mexico.[5] Like all other pitvipers, it is venomous. It is sometimes treated as a subspecies of Crotalus mitchellii.[1]

Crotalus angelensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Crotalus
Species:
C. angelensis
Binomial name
Crotalus angelensis
Klauber, 1963
Location of Ángel de la Guarda Island
Synonyms
  • Crotalus angelensis Klauber, 1963
  • Crotalus mitchellii angelicus
    Hoge, 1966
  • Crotalus mitchellii angelensis
    Hoge & Romano-Hoge, 1981
  • Crotalus mitchellii angelensis
    McCrystal & McCoid, 1986[2]

Description

Grows to a maximum size of 137 centimetres (4 ft 6 in).[3]

Geographic range

Found only on Isla Ángel de la Guarda in the Gulf of California, Mexico.[3] The type locality given is "about 4 miles [6 km] southeast of Refugio Bay, at 1,500 feet [460 m] elevation, Isla Ángel de la Guarda, Gulf of California, Mexico (near 29°29½'N, 113°33'W)".[2][5]

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.[1]

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.[1]

References

  1. Frost, D.R. (2007). "Crotalus angelensis". The IUCN Red List of Threatened Species. IUCN. 2007: e.T64309A12762496. doi:10.2305/IUCN.UK.2007.RLTS.T64309A12762496.en. Retrieved 10 January 2018.
  2. 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).
  3. 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 mitchellii angelensis". Integrated Taxonomic Information System. Retrieved 13 September 2007.
  5. Crotalus angelensis at the Reptarium.cz Reptile Database. Accessed 13 September 2007.

Further reading

  • Klauber, L.M. 1963. A new insular subspecies of the speckled rattlesnake. Trans. San Diego Soc. Nat. Hist. 13: 73-80.
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