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Eastern Garter Snake

Thamnophis sirtalis sirtalis
  • 45-66 cm
  • black, green or brown with three
  • belly yellowish green
  • scales keeled; anal scale single yellow or yellow-green stripes
  • stripes may be orange or reddish in some parts of range
  • some snakes may be all black with no stripes (melanistic)
  • lateral stripes on scale rows 2 and 3
  • may have dark scales or spots between stripes giving it a checkered pattern
  • gives birth to live young