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Crotalus polystictus

Species of snake

Crotalus polystictus

Species of snake

  • C[rotalus]. lugubris var. multimaculata Jan, 1863 (nomen oblitum)
  • Caudisona polysticta Cope, 1865 (nomen protectum)
  • Crot[alus]. lugubris var. multimaculata – Jan & Sordelli, 1874
  • C[rotalus]. polystictus – Cope In Yarrow In Wheeler, 1875
  • Crotalus Jimenezii Dugès, 1877
  • [Crotalus triseriatus] Var. jimenezii – Garman, 1884
  • Crotalus polystictus – Boulenger, 1896
  • Crotalus polystictus – Klauber, 1972
Young example of Crotalus polysticus

The ** Mexican lance-headed rattlesnake** or lance-headed rattlesnake (Crotalus polystictus) is a venomous pit viper species found in central Mexico. No subspecies is currently recognized.

Description

Adults usually grow to a total length of 60 to, although exceptionally large specimens may be as much as 100 cm long.

Geographic range

The species is found on the plateau of central Mexico from southern Zacatecas and northeastern Colima east to east-central Veracruz. It occurs at elevations between 1450 and. The type locality given is "Table Land, Mexico", although a restriction to "Tupátaro, Guanajuanto, Mexico" was proposed by H.M. Smith and Taylor (1950).

Conservation status

This species is classified as Least Concern on the IUCN Red List of Threatened Species (v3.1, 2001). 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.

References

References

  1. Mendoza-Quijano, F.. (2007). "''Crotalus polystictus''".
  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. Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. {{ISBN. 0-8014-4141-2.
  4. Mehrtens JM. 1987. Living Snakes of the World in Color. New York: Sterling Publishers. 480 pp. {{ISBN. 0-8069-6460-X.
  5. {{ITIS
  6. {{Redlist CC2001. (13 September). (2007)
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