Crotalus atrox

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Crotalus atrox


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 atrox


Crotalus atrox Baird & Girard, 1853: 5 [conserved name]

  • Holotype: USNM 7761, collected by J.H. Clark [U.S.-Mexican Boundary Survey] between 1850–1852, via J.D. Graham.
  • Type locality: “Indianola”, Calhoun County, Texas.
  • Placed on the Official List of Specific Names in Zoology by Opinion 365 (1955: 217).


  • Crotalus cinereous LeConte in Hallowell, 1852: 180 [suppressed by Opinion 365 (1955: 217)]
    • Type material: unknown.
    • Type locality: “Colorado”.
    • Placed on the Official Index of Rejected and Invalid Specific Names in Zoology by Opinion 365 (1955: 217).
  • Caudisona atrox var. sonoraensis Kennicott, 1861: 206
    • Type material: no type designated.
    • Type locality: “Sonora and vicinity.”


Primary references[edit]

  • Hallowell, E. 1852. Descriptions of New Species of Reptiles inhabiting North America. Proceedings of the Academy of Natural Sciences of Philadelphia 6: 177–182. BHL
  • Baird, S.F. & Girard, C. 1853. Catalogue of North American Reptiles in the Museum of the Smithsonian Institution. Part 1.–Serpents. Smithsonian Institution: Washington. xvi + 172 pp. BHL Reference page
  • Kennicott, R. 1861. On three new forms of rattlesnakes. Proceedings of the Academy of Natural Sciences of Philadelphia 13: 206–208. BHL Reference page
  • International Commission on Zoological Nomenclature. 1955. Opinion 365. Suppression under the Plenary Powers of the specific name “cinereousLeConte, 1852, as published in the combination “Crotalus cinereous”, for the purpose of rendering the specific name “atroxBaird and Girard, 1853, as published in the combination “Crotalus atrox”, the oldest available name for the western diamond rattlesnake (Class Reptilia, Order Squamata). pp. 215–230. In Hemming, F. (Ed.). Opinions and Declarations of the International Commission on Zoological Nomenclature. Volume 11. Part 15. International Trust for Zoological Nomenclature: London. BHL Reference page


Vernacular names[edit]

Deutsch: Westliche Diamantklapperschlange
English: Western Diamond-backed Rattlesnake
español: Cascabel diamantina del oeste
magyar: Texasi csörgőkígyó
italiano: Crotalo adamantino occidentale
polski: Grzechotnik teksaski
Türkçe: Batılı elmas sırtlı
Wikimedia Commons For more multimedia, look at Crotalus atrox on Wikimedia Commons.