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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
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: Dipsadidae
Subfamilia: Xenodontinae
Genus: Xenodon
Species (12): X. dorbignyi – X. guentheri – X. histricus – X. matogrossensis – X. merremii – X. nattereri – X. neuwiedii – X. pulcher – X. rabdocephalus – X. semicinctus – X. severus – X. werneri
Name

Xenodon Boie in Fitzinger, 1826

Type species: Coluber severus Linnaeus, 1758.

Synonyms

Lystrophis Cope, 1885 [synonymized by Zaher, Grazziotin, Cadle, Murphy, Moura-Leite & Bonatto (2009: 147)]
Type species: Heterodon dorbignyi Duméril, Bibron & Duméril, 1854.

Waglerophis Romano & Hoge, 1972 [synonymized by Zaher, Grazziotin, Cadle, Murphy, Moura-Leite & Bonatto (2009: 147)]
Type species: Ophis merremii Wagler, 1824.

References
Primary references

Zaher, H., Grazziotin, F.G., Cadle, J.E., Murphy, R.W., Moura-Leite, J.C. & Bonatto, S.L. 2009. Molecular phylogeny of advanced snakes (Serpentes, Caenophidia) with an emphasis on South American xenodontines: a revised classification and descriptions of new taxa. Papéis Avulsos de Zoologia 49(11): 115–153. DOI: 10.1590/S0031-10492009001100001 Open access Reference page.

Links

Uetz, P. & Hallermann, J. 2021. Xenodon . The Reptile Database. Accessed on 14 February 2020.
Xenodon – Taxon details on Interim Register of Marine and Non-marine Genera (IRMNG).
Xenodon – Taxon details on Integrated Taxonomic Information System (ITIS).

Vernacular names
Deutsch: Südamerikanische Hakennattern
English: South American Hognose Snakes

Xenodon is a genus of New World snakes in the subfamily Dipsadinae of the family Colubridae.[1]

Geographic range

Species of the genus Xenodon are found in Mexico, Central America, and South America.[1]
Diet

Snakes in the genus Xenodon prey almost exclusively on toads.[2]
Species

The following 12 species are recognized as being valid.[1]

Xenodon dorbignyi (Bibron, 1854)
Xenodon guentheri Boulenger, 1894
Xenodon histricus (Jan, 1863)
Xenodon matogrossensis (Scrocchi & Cruz, 1993)
Xenodon merremii (Wagler, 1824)
Xenodon nattereri (Steindachner, 1867)
Xenodon neuwiedii Günther, 1863
Xenodon pulcher (Jan, 1863)
Xenodon rabdocephalus (Wied, 1824)
Xenodon semicinctus (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854)
Xenodon severus (Linnaeus, 1758)
Xenodon werneri Eiselt, 1963

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Xenodon.
References

Genus Xenodon at The Reptile Database

Goin CJ, Goin OB, Zug GR (1978). Introduction to Herpetology: Third Edition. San Francisco: W.H. Freeman. xi + 378 pp. ISBN 0-7167-0020-4. (Genus Xenodon, p. 149).

Further reading

Boie H (1826). "Notice sur l'Erpétologie de l'île de Java ". Bulletin des Sciences Naturelles et de Géologie 9 (203): 233–240. (Xenodon, new genus, p. 238). (in French).
Freiberg M (1982). Snakes of South America. Hong Kong: T.F.H. Publications. 189 pp. ISBN 0-87666-912-7. (Genus Xenodon, p. 113).

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