A distributional survey of the eastern collared lizard, Crotaphytus collaris collaris, was conducted in the Arkansas River Valley of Arkansas during the summer of 1988. Thirty-four sites in 10 counties were searched. Only three localities yielded colonies of lizards; all were found south of the Arkansas River. This species has a discontinuous distribution in central Arkansas; habitat depletion and overzealous collection may have contributed to the extirpation of lizards at formerly-reported localities in the Arkansas River Valley of Arkansas.
Trauth, Stanley E.
"Distributional Survey of Eastern Collared Lizard, Crotaphytus collaris collaris (Squamata: Iguanidae), Within the Arkansas River Valley of Arkansas,"
Journal of the Arkansas Academy of Science: Vol. 43
, Article 30.
Available at: https://scholarworks.uark.edu/jaas/vol43/iss1/30