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Chironius bicarinatus.jpeg
Chironius bicarinatus
Chironius scurrulus (Yasuni).jpg
Chironius scurrulus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Subfamily: Colubrinae
Genus: Chironius
Fitzinger, 1826

16, See text

Chironius is a genus of New World colubrid snakes, commonly called sipos (from the Portuguese word cipó for liana), savanes, or sometimes vine snakes. There are sixteen described species in this genus with the last species being described in 1993.


Conservation status[edit]

The St. Vincent Blacksnake, Chironius vincenti is listed as critically endangered by the IUCN Red List due to its extremely limited range on the Island of St. Vincent.