Helicops (snake)

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.^[1]

Helicops acangussu Moraes-da-Silva, Walterman, Citeli, Sales-Nunes & Curcio, 2022
Helicops angulatus (Linnaeus, 1758) – brown-banded water snake
Helicops apiaka Kawashita-Ribeiro, Ávila & Morais, 2013
Helicops boitata Moares-da-Silva, Amaro, Sales-Nunes, Strüssmann, Teixeira, Andrade, Sudré, Recoder, Rodrigues & Curcio, 2019
Helicops carinicaudus (Wied-Neuwied, 1825) – Wied's keelback
Helicops danieli Amaral, 1938 – Daniel's keelback
Helicops gomesi Amaral, 1921 – São Paulo keelback
Helicops hagmanni Roux, 1910 – Hagmann's keelback
Helicops infrataeniatus Jan, 1865
Helicops leopardinus (Schlegel, 1837) – leopard keelback
Helicops modestus Günther, 1861 – olive keelback
Helicops nentur Costa, Santana, Leal, Koroiva & Garcia, 2016
Helicops pastazae Shreve, 1934 – Shreve's keelback
Helicops petersi Rossman, 1976 – spiral keelback
Helicops phantasma Moraes Da Silva, Amaro, Sales-Nunes, Rodrigues & Curcio, 2021
Helicops polylepis Günther, 1861 – Norman's keelback
Helicops scalaris Jan, 1865 – ladder keelback
Helicops tapajonicus da Frota, 2005
Helicops trivittatus (Gray, 1849) – equatorial keelback
Helicops yacu Rossman & Dixon, 1975 – Peru keelback

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