Natural History of the Racer Coluber constrictor

by Henry S. Fitch

1958. An ecological study of reptiles and amphibians of Osage County, Kansas. Emporia State Research Studies, 7(1):1-52.

Cohen, E.

1948. Emergence of Coluber c. constrictor from hibernation. Copeia, 1948:137-138.

Committee on Herpetological Common Names

1956. Common names for North American amphibians and reptiles. Copeia, 1956(3):172-185.

Conant, R.

1938. The reptiles of Ohio. Amer. Midl. Nat., 20(1):1-200.

1958. A field guide to reptiles and amphibians of the United States and Canada east of the 100th Meridian. Houghton-Mifflin Co., Boston xviii + 366 pp., 40 pls., 62 figs., 248 maps.

Cope, E. D.

1900. The crocodilians, lizards and snakes of North America. Rept. U. S. Nat. Mus. for 1898, pp. 153-1270.

Crabb, W. D.