Nerodia cyclopion
| green water snake | |
|---|---|
 |
|
| Nerodia cyclopion in Arkansas | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Colubridae |
| Genus: | Nerodia |
| Species: | N. cyclopion |
| Binomial name | |
|
Nerodia cyclopion (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854) |
|
| Synonyms | |
|
|
The green water snake (Nerodia cyclopion) is a common species of nonvenomous natricine snake endemic to the southeastern United States.
N. cyclopion is distributed from the Florida panhandle westward to Louisiana, and northward through the Mississippi Valley into southern Illinois.
More precisely, it is found in southwestern Alabama, southeastern Arkansas, northwestern Florida, southern Illinois, southwestern Indiana, western Kentucky, Louisiana, southern Mississippi, southeastern Missouri, western Tennessee, and southeastern Texas.
The type locality is New Orleans, Louisiana.
N. cyclopion differs from most other species of North American water snakes by having one or more small scales under the eye, giving the appearance of a ring of small plates around the eye, a character shared only with the species N. floridana.
A heavy-bodied snake, N. cyclopion is dark green, olive, or brown dorsally. Ventrally, it is yellowish on the anterior third, and the on remainder dark brown with yellow or white semicircles.
N. cyclopion averages 76–140 cm (30-55 inches) in total length (including tail).
N. cyclopion prefers still waters such as bayous, lakes, marshes, ponds, sluggish streams, and swamps. It is sometimes found in brackish water.
...
Wikipedia