Anaxyrus hemiophrys

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Anaxyrus hemiophrys


Taxonavigation: Anura 

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Amphibia
Subclassis: Lissamphibia
Ordo: Anura

Familia: Bufonidae
Genus: Anaxyrus
Species: Anaxyrus hemiophrys


Anaxyrus hemiophrys (Cope, 1886)

Type locality: "Turtle Mountains", North Dakota, USA.

Holotype: Syntypes - USNM 11927 (6 specimens).


The recognition of Anaxyrus as a genus distinct from Bufo is highly controversial, and has not been accepted by many herpetologists working with this group. For a complete phylogeny of the species in this group and their relationships as a subgroup within Bufo, see Pauly et al. (2004).


  • Bufo hemiophrys Cope, 1886
  • Bufo woodhousei hemiophrysSchmidt, 1953


  • Cope, 1886, Proc. Am. Philos. Soc., 23: 515.
  • Pauly, G. B., D. M. Hillis, and D. C, Cannatella. (2004) The history of a Nearctic colonization: Molecular phylogenetics and biogeography of the Nearctic toads (Bufo). Evolution 58: 2517–2535.
  • Frost, Darrel R. 2018. Amphibian Species of the World: an Online Reference. Version 6.0. Electronic Database accessible at American Museum of Natural History, New York, USA. Anaxyrus hemiophrys . Accessed on 26 Mar 2008.
  • World Conservation Monitoring Centre IUCN: Anaxyrus hemiophrys  (Least Concern)

Vernacular names[edit]

English: Canadian Toad