Squamata suborder Serpentes Tantilla gracilis Flathead Snake Search for another Amphibian or Reptile. Search for amphibians and reptiles by Illinois county. Go to the INHS Amphibian and Reptile Collection page. Search the INHS collections data for this species by clicking on the button below. Search the Type Specimen Data for this species by clicking on the button below.
Yellow shade indicates verified sighting.
Slanted hatch indicates pre-1980 records only. Not all specimens upon which these maps are based have been verified. Belly bright salmon or orange in the middle, becoming white toward the sides. Rocky, wooded limestone hillsides. Probably nocturnal and found mostly in spring and autumn under rocks, logs, and other moist debris in forest or brushy slopes.