Oxyrhopus

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: Oxyrhopus
Species: O. clathratus – O. doliatus – O. erdisii – O. fitzingeri – O. formosus – O. guibei – O. leucomelas – O. marcapatae – O. melanogenys – O. occipitalis – O. petola – O. rhombifer – O. trigeminus
Name

Oxyrhopus
Vernacular names
English: False Coral Snakes

Oxyrhopus is a genus of colubrid snakes that belong to the subfamily Dipsadinae. The genus is found in Central America and the northern part of South America,[3] and it includes 15 distinct species.[1]

Species

The following 15 species are recognized as being valid.[4]

Oxyrhopus clathratus A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854
Oxyrhopus doliatus A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854
Oxyrhopus emberti Gonzales, Reichle, & Entiauspe-Neto, 2020
Oxyrhopus erdisii (Barbour, 1913)
Oxyrhopus fitzingeri (Tschudi, 1845)
Oxyrhopus formosus (Wied-Neuwied, 1820)
Oxyrhopus guibei Hoge & Romano, 1977
Oxyrhopus leucomelas (F. Werner, 1916)
Oxyrhopus marcapatae (Boulenger, 1902)
Oxyrhopus melanogenys (Tschudi, 1845)
Oxyrhopus occipitalis (Wagler, 1824)
Oxyrhopus petolarius (Linnaeus, 1758) - calico snake, culebra-encendida de cálico
Oxyrhopus rhombifer A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854
Oxyrhopus trigeminus A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854[1]
Oxyrhopus vanidicus Lynch, 2009[5]

The former Oxyrhopus venezuelanus Shreve, 1947[1] is currently considered a synonym of Oxyrhopus doliatus.[4]

Nota bene: In the above list, a binomial authority in parentheses indicates that the species was originally described in a genus other than Oxyrhopus.
Description

Species in the genus Oxyrhopus share the following characters:

Head distinct from neck. Eye moderate or small. Pupil vertically elliptic. Body cylindrical or slightly laterally compressed. Tail moderate or long.

Dorsal scales smooth, with apical pits, and arranged in 19 rows at midbody.

Maxillary teeth 10-15, subequal, followed after a gap by two enlarged grooved teeth, located just behind the posterior border of the eye.[2]
References

"Oxyrhopus". Integrated Taxonomic Information System. Retrieved 26 February 2011.
Boulenger GA (1896). Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ) ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiv + 727 pp. + Plates I-XXV. (Genus Oxyrhopus, p. 99).
MacCulloch, Ross D.; Lathrop, Amy; Kok, Philippe J. R.; Ernst, Raffael; Kalamandeen, Michelle (2009). "The genus Oxyrhopus (Serpentes: Dipsadidae: Xenodontinae) in Guyana: morphology, distributions and comments on taxonomy". Papéis Avulsos de Zoologia. 49 (36): 487–495. doi:10.1590/S0031-10492009003600001.
"Oxyrhopus ". The Reptile Database. www.reptile-database.org.

Lynch JD (2009). "Snakes of the genus Oxyrhopus (Colubridae: Squamata) in Colombia: taxonomy and geographic variation". Papéis Avulsos de Zoologia (São Paulo) 49 (25): 319-337.