Cagle, F. R.
1942. Herpetological fauna of Jackson and Union counties, Illinois. Amer. Midl. Nat., 28(1):164-200.
Carpenter, C. C.
1958. Reproduction, young, eggs and food of Oklahoma snakes. Herpetologica, 14:113-115.
Carr, A. F. Jr.
1940. A contribution to the herpetology of Florida. Univ. Florida Publ. Biol. series, 3:iv + 118 pp.
Clark, R. F.
1949. Snakes of the hill parishes of Louisiana. Jour. Tennessee Acad. Sci., 24(4):244-261.
Clarke, R. F.