Anderson, P.
1942. Amphibians and reptiles of Jackson County, Missouri. Bull. Chicago Acad. Sci., 6 (no. 11):203-220.
Anonymous.
1945. Principal game birds and mammals of Texas. Texas Game Fish and Oyster Commission, Von Boeckman-Jones Co. Press, Austin, Texas. 149 pp.
Axelrod, D. I.
1950. Studies in late Tertiary paleobotany. Carnegie Inst. Wash., Publ. 590, 323 pp.
Barbour, R. W.
1950. The reptiles of Big Black Mountains, Harlan County, Kentucky. Copeia, 1950:100-107.
Barbour, T., and Carr, A. F.
1940. Eumeces in the Miami area. Copeia, 1940:129.