Green water snake
Nerodia cyclopion (Duméril, Bibron & Duméril, 1854)
Status not recordedsnakes
The green water snake (Nerodia cyclopion) is a species in the family Colubridae, order Squamata. Recorded adults weigh about 790 g.
No freely licensed photo yet
Quick facts about the green water snake
- Weight
- 790 gsrc for Weight
- Length
- up to 1.9 msrc for Length
- Lifespan
- Not recorded
- Diet
- Carnivoresrc for Diet
- Main food
- Not recorded
- Habitat
- forestsrc for Habitat
- Young per litter or clutch
- 18 – 52.5src for Young per litter or clutch
- Reproduction
- Live birthsrc for Reproduction
- Active
- Day and night (cathemeral)src for Active
- Conservation status
- Not recorded
- Countries on record
- Not recorded
Where does the green water snake live?
Not recorded
Is the green water snake endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the green water snake classified?
- kingdomAnimalia
- phylumChordata
- classReptilia
- orderSquamata
- familyColubridae
- genusNerodia
- SpeciesNerodia cyclopion (Duméril, Bibron & Duméril, 1854)
Synonyms Tropidonotus cyclopion
Other names and names in other languages (7)
- Mississippi green water snakeEnglish
- Vestlig Grøn VandsnogDanish
- Grüne SchwimmnatterGerman
- Grüne WasserschlangeGerman
- Cobra-d'água-verde-do-MississipiPortuguese
- Американский уж-циклопRussian
- 綠水蛇Chinese
Relatives of the green water snake
Other species in the same genus Nerodia.
Common watersnake
Nerodia sipedon
Brown wax
Nerodia fasciata
Brown water snake
Nerodia taxispilota
Salt marsh snake
Nerodia clarkii
Florida green water snake
Nerodia floridana
Diamondback water snake
Nerodia rhombifer
CompareGreen water snake vs Common watersnakeGreen water snake vs Brown waxGreen water snake vs Brown water snakeGreen water snake vs Salt marsh snake
Common questions
Answered only where our data holds the answer.
How big is the green water snake?
An adult green water snake weighs 790 g, according to values recorded on Wikidata.
What kind of animal is the green water snake?
The green water snake (Nerodia cyclopion) belongs to the family Colubridae in the order Squamata.
Sources and how to cite this page
Data as of 2026-11-14. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - ReptTraits: a comprehensive dataset of ecological traits in reptiles · CC BY 4.0 · v1-2
Oskyrko, O., Mi, C., Meiri, S. et al. (2024) ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data 11: 243. https://doi.org/10.1038/s41597-024-03079-5. Data: https://doi.org/10.6084/m9.figshare.24572683.v4 - SquamBase 1.0 - a dataset of squamate species traits · CC0 1.0 · 1.0-dryad-v5
Meiri, S. (2024) SquamBase - a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography 33(4): e13812. https://doi.org/10.1111/geb.13812. Data: https://doi.org/10.5061/dryad.76hdr7t3b
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Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Green water snake (Nerodia cyclopion). Retrieved from https://creaturedata.com/animals/nerodia-cyclopion
“Green water snake (Nerodia cyclopion).” CreatureData, 2026, https://creaturedata.com/animals/nerodia-cyclopion.
@misc{nerodia_cyclopion_2026,
title = {Green water snake (Nerodia cyclopion)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/nerodia-cyclopion},
note = {Data as of 2026-11-14}
}