Crotalus polystictus

Crotalus polystictus


Taxonavigation: Viperoidea 

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Lepidosauromorpha
Superordo: Lepidosauria
Ordo: Squamata
Cladus: Unidentata, Episquamata
Cladus: Toxicofera
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Viperoidea

Familia: Viperidae
Subfamilia: Crotalinae
Genus: Crotalus
Species: Crotalus polystictus



Crotalus polystictus (Cope, 1865) [conserved name]

  • Holotype: Unknown.
  • Type locality: “Table Land, Mexico”.
  • Placed on the Official List of Specific Names in Zoology by Opinion 366 (1955: 233).


  • Caudisona polysticta Cope, 1865: 191 [original combination]
  • Crotalus polystictusCope, 1875 [subsequent combination]



Primary references

  • Cope, E.D. 1885. Twelfth contribution to the herpetology of tropical America. Proceedings of the American Philosophical Society 22: 167–194.
  • International Commisision on Zoological Nomenclature. 1955. Opinion 366. Suppression, under the Plenary Powers, of the specific name multimaculata Jan, 1863, as published in the combination Crotalus lugubris var. multimaculata, for the purpose of rendering the specific name polysticta Cope, 1865, as published in the combination Caudisona polysticta, the oldest available name for the Mexican Lance-Headed Rattlesnake (Class Reptilia, Order Squamata). pp. 231–244 In Hemming, F. (ed.). Opinions and declarations rendered by the International Commission on Zoological Nomenclature. Volume 11. Part 16. International Trust for Zoological Nomenclature: London. BHL Reference page

Vernacular names

English: Mexican Lance-headed Rattlesnake