Crotalus molossus estebanensis

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Crotalus molossus estebanensis
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Crotalinae
Genus: Crotalus
Species: C. molossus
Subspecies: C. m. estebanensis
Trinomial name
Crotalus molossus estebanensis
Klauber, 1949
Crotalus estebanensis distribution.png
  • Crotalus molossus estebanensis - Klauber, 1949[1]
Common names: San Esteban Island rattlesnake.[2]

Crotalus molossus estebanensis is a venomous pitviper subspecies[3] endemic to San Estéban Island, Mexico.


Adults grow to a maximum reported length of 98.2 cm.[2]

Geographic range[edit]

Known only from the type locality,[2] which is "San Estéban Island, Gulf of 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).[4] 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.[5]

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. ^ 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.
  3. ^ "Crotalus molossus estebanensis". Integrated Taxonomic Information System. Retrieved 13 September 2007. 
  4. ^ Crotalus estebanensis at the IUCN Red List. Accessed 13 September 2007.
  5. ^ 2001 Categories & Criteria (version 3.1) at the IUCN Red List. Accessed 13 September 2007.

External links[edit]