Cook, F. A.
1946. Distribution of species of Amyda in Mississippi. Jour. Mississippi Acad. Sci., 1946, pp. 185-190.
Cope, E. D.
1894. Note on the above (Trionyches in the Delaware drainage by C. W. Johnson). Amer. Nat., 28:889, October.
Corrington, J. D.
1927. Field notes on some amphibians and reptiles at Biloxi, Mississippi. Copeia, 1927(165):98-102, December 23.
Cowles, R. B., and Bogert, C. M.
1936. The herpetology of the Boulder Dam region (Nev., Ariz., Utah). Herpetologica, 1 (Pt. 2):33-42, December 30.
Cox, U. O.
1894. The climbing habits of the softshell turtle (Aspidonectes spinifer). Science, 23(573):50, January 26.