Coluber constrictor ssp.
North American Racer

Long, slender, and speedy. Uniform black, dark gray, or olive; rarely with speckling of lighter scales. Labial scales, chin, and neck usually lighter. Belly yellowish, cream, or black and unmarked. Juveniles blotched, fading to uniform olive toward tail. Species account on iNaturalist

Subspecies: C. c. anthicus (Buttermilk Racer), C. c. flaviventris (Eastern Yellow-bellied Racer), C. c. latrunculus (Black-masked Racer), and C. c. priapus (Southern Black Racer)

Arkansas Herpetological Atlas 2019

This species is represented by 845 records from 40 sources: 637 museum (), 0 literature (), 0 research (), and 163 observation (), with 45 additional Trauth et al. (2004) locality points remaining unsourced (). It has been museum vouchered for 73 of 75 counties (), with 1 additional county having other forms of reported occurrence (). Years of collection range from 1878 to present.

This species is common statewide. Four geographic color variants are recognized as being present in the state, with C. c. priapus () being the most widespread and dominant form. The strikingly patterned C. c. anthicus () occurs in southcentral Arkansas, C. c. flaviventris () along the northern Ozark Highlands, and C. c. latrunculus () from Crowley’s Ridge eastward.