Helicops

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: Helicops
Species: H. angulatus – H. apiaka – H. carinicaudus – H. danieli – H. gomesi – H. hagmanni – H. hogei – H. infrataeniatus – H. leopardinus – H. modestus – H. pastazae – H. petersi – H. polylepis – H. scalaris – H. tapajonicus – H. trivittatus – H. yacu
Name

Helicops Wagler, 1830
References

Helicops – Taxon details on Integrated Taxonomic Information System (ITIS).

Helicops is a genus of snakes of the family Colubridae. The genus is endemic to South America.
Species

The following 19 species are recognized as being valid.[1]

Helicops angulatus (Linnaeus, 1758)
Helicops apiaka Kawashita-Ribeiro, Ávila & Morais, 2013
Helicops boitata Moares da Silva, Cecilia Amaro, Sales-Nunes, Strassmann, Teixeira, Andrade, Sudre, Recoder, Rodrigues, & Curcio, 2019
Helicops carinicaudus (Wied-Neuwied, 1825) - Wied's keelback
Helicops danieli Amaral, 1938
Helicops gomesi Amaral, 1921
Helicops hagmanni Roux, 1910
Helicops infrataeniatus Jan, 1865
Helicops leopardinus (Schlegel, 1837)
Helicops modestus Günther, 1861
Helicops nentur Costa, Santana, Leal, Koroiva & Garcia, 2016
Helicops pastazae Shreve, 1934
Helicops petersi Rossman, 1976
Helicops phantasma Moraes Da Silva, Amaro, Sales-Nunes, Rodrigues, & Curcio, 2021
Helicops polylepis Günther, 1861
Helicops scalaris Jan, 1865
Helicops tapajonicus da Frota, 2005
Helicops trivittatus (Gray, 1849)
Helicops yacu Rossman & Dixon, 1975

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

Genus Helicops at The Reptile Database.