The Natricinae are a subfamily of colubroid snakes, sometimes referred to as a family (Natricidae).[1] The subfamily comprises 36 genera. Members include many very common snake species, such as the European grass snakes, and the North American water snakes and garter snakes. Some Old World members of the subfamily are known as keelbacks, because their dorsal scales exhibit strong keeling.
Natricine snakes are found in Africa, Asia, Europe, North America, and Central America as far south as Costa Rica. A single species, Tropidonophis mairii, reaches Australia. Although the highest diversity is in North America, the oldest members are in Asia and Africa, suggesting an Old World origin for the group. Most species are semiaquatic and feed on fish and amphibians, although a few are semifossorial or leaf-litter snakes that feed on invertebrates. Most species are harmless to humans, but a few (e.g., Thamnophis sirtalis, Thamnophis elegans) are capable of inflicting bites that can result in local, non-life-threatening symptoms, and at least two members of the genus Rhabdophis (R. tigrinus and R. subminiatus) are capable of inflicting life-threatening bites to humans, though they have only enlarged, ungrooved fangs in the back of the mouth.[2]
^Dowling, Herndon G.; Jenner, Janann V. (1988). Snakes of Burma: Checklist of reported species and bibliography. Smithsonian Herpetological Information Service #76. Washington, D.C.: Division of Amphibians and Reptiles, National Museum of Natural History, Smithsonian Institution. OCLC 23345387.
^Weinstein, Scott A.; Warrell, David A.; White, Julian; Keyler, Daniel E. (2011). Venomous Bites from Non-Venomous Snakes: A Critical Analysis of Risk and Management of "Colubrid" Snake Bites. London: Elsevier. 364 pp. ISBN 978-0123877321.
The Natricinae are a subfamily of colubroid snakes, sometimes referred to as a family (Natricidae). The subfamily comprises 36 genera. Members include...
a species of nonvenomous semiaquatic snake, a member of the subfamily Natricinae of the family Colubridae. The species is endemic to North America. R....
Rhabdophis is a genus of snakes in the subfamily Natricinae of the family Colubridae. Species in the genus Rhabdophis are generally called keelback snakes...
garter snake (T. sirtalis). The subspecies, which belongs to the subfamily Natricinae of the family Colubridae, is native to the western United States. The...
red-necked keelback snake, is a species of venomous snake in the subfamily Natricinae of the family Colubridae. The species is endemic to Asia. Rhabdophis subminiatus...
(Thamnophis marcianus) is a species of garter snake in the subfamily Natricinae of the family Colubridae. The species is endemic to the southwestern United...
Eurasian nonvenomous snake belonging to the family Colubridae, subfamily Natricinae. It is also called water snake. Females are bigger than males. Their typical...
swamp snake (Liodytes pygaea) is a species of snake in the subfamily Natricinae of the family Colubridae. The species is endemic to the southeastern United...
Storeria is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to North America and Central America. The genus...
commonly as the Asiatic water snake, is a common species in the subfamily Natricinae of the family Colubridae. The species is endemic to Asia. It is non-venomous...
yamakagashi, or kkotbaem, is a species of venomous snake in the subfamily Natricinae of the family Colubridae. The species is native to East Asia and Southeast...
astreptophora and N. maura into north-west Africa) in the subfamily Natricinae of the family Colubridae. They are commonly called grass snakes and water...
or western ribbonsnake, is a species of garter snake in the subfamily Natricinae of the family Colubridae. The species is found in the central and southern...
non-aggressive snake that feeds on frogs and toads. It belongs to the subfamily Natricinae, and is closely related to water snakes and grass snakes. It resembles...
Fowlea is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. The following species are recognized as...
North America. It is a non-venomous species of snake in the subfamily Natricinae of the family Colubridae. The ribbon snake averages 16 to 35 inches (41...
Natriciteres is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Sub-Saharan Africa. The following six species...
Tropidoclonion is a genus of snake in the subfamily Natricinae of the family Colubridae. The genus is monotypic, containing the sole species Tropidoclonion...
somewhat wider and more distinct from the neck. Like most members of the Natricinae it possesses a venom gland on each side of the upper jaw (Duvernoy's gland)...
lineatum texanum) is a subspecies of nonvenomous snake in the subfamily Natricinae of the family Colubridae. The subspecies is endemic to the United States...
Chinese keelback water snake, is a species of snake in the subfamily Natricinae. The type locality for T. percarinatus is Guadun (formerly spelled as...
Herpetoreas is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to South Asia. The genus Herpetoreas contains...
the New World. Unlike other snake groups (e.g. Crotalinae, Colubrinae, Natricinae, Dipsadinae), however, sibynophiines evidently left no extant species...
Xenochrophis is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to Asia. Some members have been moved to the...
Liodytes is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus contains three species. All species of the genus Liodytes...
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