Helicops is a genus of snakes of the family Colubridae. The genus is endemic to South America.
Species The following 20 species are recognized as being valid.. Helicops acangussu Helicops angulatus – brown-banded water snake Helicops apiaka Helicops boitata Helicops carinicaudus – Wied's keelback Helicops danieli – Daniel's keelback Helicops gomesi – São Paulo keelback Helicops hagmanni – Hagmann's keelback Helicops infrataeniatus Helicops leopardinus – leopard keelback Helicops modestus – olive keelback Helicops nentur Helicops pastazae – Shreve's keelback Helicops petersi – spiral keelback Helicops phantasma Helicops polylepis – Norman's keelback Helicops scalaris – ladder keelback Helicops tapajonicus Helicops trivittatus – equatorial keelback Helicops yacu – Peru keelback
Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Helicops.
References
Further reading Freiberg M (1982). Snakes of South America. Hong Kong: T.F.H. Publications. 189 pp. . (Helicops, p. 99). Wagler J (1828). Descriptiones et Icones Amphibiorum. Part I, Plates I-XIII. Munich, Stuttgart, Tübingen: J.G. Cotta. (Helicops, new genus, Plate VII). (in Latin). https://serpientesdevenezuela.org/helicops-scalaris/