Sonora palarostris


Taxonavigation: Colubroidea 

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
Subordo: Serpentes
Infraordo: Caenophidia
Superfamilia: Colubroidea

Familia: Colubridae
Subfamilia: Colubrinae
Genus: Sonora
Species: Sonora palarostris
Subspecies (2): S. p. organica – S. p. palarostris


Sonora palarostris Klauber, 1937

  • Holotype: SDSNH 26771, adult ♂, collected by Lindsay.
  • Type locality: Five miles south of Magdalena, Sonora.


  • Sonora palarostris Klauber, 1937: 363 [original combination]
  • Sonora occipitalis palarostrisStickel, 1941: 137 [subsequent combination]
  • Chionactis occipitalis palarostrisStickel, 1943: 123 [subsequent combination]
  • Chionactis palarostrisKlauber, 1951: 176 [subsequent combination]


Primary referencesEdit

  • Klauber, L.M. 1937. A new snake of the genus Sonora from Mexico. Transactions of the San Diego Society of Natural History 8(27): 363–366.

Additional referencesEdit

  • Stebbins,R.C. 1985. A Field Guide to Western Reptiles and Amphibians. 2nd ed. Houghton Mifflin: Boston.


Vernacular namesEdit

English: Sonoran Shovel-nose Snake