Tantilla gracilis
Flat-headed Snake

Extremely small. Fossorial. Glade-dweller. Uniform tan. Head pointed and darker. Belly salmon-colored. Species account on iNaturalist

Arkansas Herpetological Atlas 2019

This species is represented by 548 records from 29 sources: 491 museum (), 0 literature (), 0 research (), and 34 observation (), with 23 additional Trauth et al. (2004) locality points remaining unsourced (). It has been museum vouchered for 45 of 75 counties (), with 5 additional counties having other forms of reported occurrence (). Years of collection range from 1897 to present.

This species occurs throughout much of the Interior Highlands and South Central Plains. An absence of records from the central Boston Mountains is likely an artifact of undersampling this area. Few records exist from the Mississippi Alluvial Plain and Crowley’s Ridge, with most clustered in the vicinity of Jonesboro, Craighead County. The historical records from western Monroe County (APSU 13970 from 1934), and vicinity of Pine Bluff, Jefferson County (UAFMC 0068-0735-0399, undated), may warrant confirmation. An isolated cluster of localities plotted by Trauth et al. (2004) from the vicinity of Monticello, Drew County, remain unsourced.