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Reptiles & Amphibians




Red-spotted Gartersnake - Thamnophis sirtalis concinnus

(Hallowell, 1852)





Approximate range of T. sirtalis
Light Green = range of T. s. concinnus
Click map to enlarge

Washington GAP


More Information

Northwest Herps Resources List
Washington Herp Atlas
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Related or Similar Northwest Snakes

Wandering Gartersnake
Valley Gartersnake
Puget Sound Gartersnake
Northwestern Gartersnake



observation link



  Sub-adult, Benton County, Oregon  
Adult, Benton County, Oregon Adult, Multnomah County, Oregon
  Adult, Multnomah County, Oregon  
  Adult, Multnomah County, Oregon  
Adult, Benton County, Oregon Adult, Benton County, Oregon Adult, Multnomah County, Oregon
Puget Sound Gartersnake
These two Common Gartersnakes were found at the same location in Pacific County, Washington, which is shown in field guides as an intergrade zone with T. s. pickeringii.
Looking at the top of the heads can help to identify these sympatric species on the north coast:
Left: T. sirtalis(Puget Sound Gartersnake subspecies) has a larger longer head with bigger eyes than
Right: T. ordinoides - Northwestern Gartersnake
© Filip Tkaczyk
     
Habitat
Habitat, Multnomah County, Oregon Habitat, Benton County, Oregon Habitat, Benton County, Oregon
   
  Habitat, Multnomah County, Oregon
 
     
Short Video
   
  These are all shots of the same Red-spotted Gartersnake I spotted at the edge of a pond. It swam away when I approached it, but I snuck up on it and grabbed it, took a few shots of it on the ground, then let it swim away.




 
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