Family Colubridae
- Description:
- Adults to 49" in length. Color black, gray, or brown; prominent yellow stripe on back, pale stripe on sides; red blotches between dorsal and lateral stripes. Moderately slender body; keeled scales. Single anal plate.
- Elevation Range:
- Below 6000' in northeastern Colorado.
- Subspecies in Colorado:
- Thamnophis sirtalis parietalis
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Photo from Hammerson, 1986.
Used with permission.
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