- Adults to 15" in length. Color uniformly light brown, except for black cap on head. Moderately slender body, with smooth scales. Divided anal plate. Enlarged, grooved teeth at rear of jaw; saliva may be toxic to arthropods.
- Elevation Range:
- Found at around 5000' in the Grand Valley of west-central Colorado.
Listed as Tantilla planiceps or Tantilla utahensis in some publications.
Drawing from Hammerson, 1986.
Used with permission.