Image of Thamnophis sirtalis sirtalis (Linnaeus 1758)

Description:

I IDed this originally as a ribbonsnake. However i received the following note, 'Upon close examination, my colleague and I confirmed that the snakes you saw are actually Gartersnakes, not Ribbonsnakes. Nice try though! I can see that there is a fair bit of yellow near the eye that can be deceiving. But on a Ribbonsnake that spot would be more crescent-shaped and pure white. Also, the lateral stripes are centered on the second scale row, as opposed to the third and fourth.'