Aquatic Garter Snake
Thamnophis atratus
Silhouette: Alex Slavenko · PhyloPic
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyColubridae (Colubrid Snakes)
- GenusThamnophis (Garter Snakes)
- SpeciesThamnophis atratus (Aquatic Garter Snake)
About the Aquatic Garter Snake
The aquatic garter snake (Thamnophis atratus) is a species of colubrid snake. Three subspecies are currently recognized. It is found exclusively along the coast of Oregon and California. The aquatic garter snake grows up to 18–40 inches (46–102 cm) long. Its dorsal coloration varies greatly. The different coloration patterns are: pale gray with alternating rows of darker blotches on the sides, dark brown with borders that are less distinct, or nearly all black. A long yellow stripe running down the back may be present or absent, only confined to the neck, or just very indistinct. The throat and underside of the snake are whitish to yellow.
One color morph of the aquatic garter snake has a blue-gray background color with a faint olive-colored dorsal stripe and white dots along its sides. Another color morph has a yellow dorsal stripe with black spots along its sides. The second color morph has the more classic garter snake look; however, due to its behavior and scalation, it is grouped in this species.
It can most commonly be found on the edges of bushlands, woodlands, grasslands, and forests near ponds, marshes, streams and lakes... Wikipedia →
Recent sightings of Aquatic Garter Snake in Redwood National Park
LIVEiNaturalistClosest Relatives at Redwood National Park
Common Garter Snake
Thamnophis sirtalis
Western Terrestrial Garter Snake
Thamnophis elegans
Northwestern Garter Snake
Thamnophis ordinoides
Gopher Snake
Pituophis catenifer
Ringneck Snake
Diadophis punctatus
North American Racer
Coluber constrictor
Forest Sharp-tailed Snake
Contia longicauda
California King Snake
Lampropeltis californiae
California Mountain Kingsnake
Lampropeltis zonata
Global Distribution
Warmer areas are where this animal is recorded most often.
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Redwood National Park | 🇺🇸 United States |
More parks will be added in future updates.
Quick answers
What are the chances of seeing a Aquatic Garter Snake in Redwood National Park?
About 20% of wildlife watchers report a Aquatic Garter Snake sighting in Redwood National Park, based on 40 verified sightings from GBIF citizen-science data.
When is the best time to see Aquatic Garter Snake in Redwood National Park?
August has the highest sighting rate for Aquatic Garter Snake in Redwood National Park in our monthly data.