Crotalus aquilus

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Crotalus aquilus
Crotalus aquilus.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Subfamily: Crotalinae
Genus: Crotalus
Species: C. aquilus
Binomial name
Crotalus aquilus
Klauber, 1952
Crotalus aquilus distribution.png
Synonyms
  • Crotalus triseriatus aquilus
    Klauber, 1952
  • Crotalus triseriatus quadrangularis Harris & Simmons, 1978
  • C[rotalus]. aquilus – Dorcas, 1992
  • Crotalus aquilus – Liner, 1994
  • Crotalus aquilus
    – McDiarmid et al., 1999
Common names: Querétaro dusky rattlesnake,[1] Queretaran dusky rattlesnake[2]

Crotalus aquilus is a venomous pit viper species found in the highlands of central Mexico. No subspecies is currently recognized.[3] The specific name, aquilus, is Latin for "eagle" and refers to the high altitude at which this species is found.

Description[edit]

This species grows to a maximum reported total length of 67.8 cm (26.7 in), but most adult specimens, which have been described as heavy-bodied, are less than 50 cm (20 in) long.[1]

Geographic range[edit]

They are found in the highlands of central Mexico in Guanajuato, Hidalgo, México, Michoacán, and San Luis Potosí. The type locality given is "near Alvarez, San Luis Potosí, Mexico".

Habitat[edit]

These snakes are found in the open grassy and generally rocky habitats north of the Transverse Volcanic Cordillera. They also occur in pine-oak forest, open karstic areas, grassy mountain meadows, and stony mesquite-grassland.[1]

Conservation status[edit]

This species is classified as Least Concern on the IUCN Red List (v3.1, 2001).[4] Species are listed as such due to their wide distribution, presumed large population, or because they are unlikely to be declining fast enough to qualify for listing in a more threatened category. The population trend was down when assessed in 2007.[5]

See also[edit]

References[edit]

  1. ^ a b c Campbell, J.A.; Lamar W.W. (2004). The Venomous Reptiles of the Western Hemisphere. Ithaca and London: Comstock Publishing Associates. pp. 870 pp. 1500 plates. ISBN 0-8014-4141-2. .
  2. ^ Klauber, L.M. (1997). Rattlesnakes: Their Habitats, Life Histories, and Influence on Mankind. Second Edition. First published in 1956, 1972. Berkeley: University of California Press. pp. 870 pp. 1500 plates. ISBN 0-520-21056-5. 
  3. ^ "Crotalus aquilus". Integrated Taxonomic Information System. Retrieved 9 July 2007. 
  4. ^ Crotalus aquilus 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.

Further reading[edit]

  • Klauber, L.M. 1952. Taxonomic studies on rattlesnakes of Mainland Mexico. Bull. Zool. Soc. San Diego 26: 1-143.