Baur, G. 1893. The Species of the Genus Pseudemys. Proc. Amer. Philos. 

 Soc. Vol.31. 



Brimley, C. S. 1920. The Turtles of North Carolina. Jour, of the Elisha 

 Mitchell Scientific Soc, Vol. 36, Nos. 1 and 2. 



Cahn, A. R. 1937. The Turtles of Illinois. Univ. of lUinois Bull., Vol. 35, 

 No. 1. (111. Biol. Monographs, Vol. 16, Nos. 1 and 2.) Urbana, Illinois. 



Carr, A. F., Jr. 1938. The Pseudemys floridana Complex. Copeia, No. 3, 

 1938. 



Conant, R. 1947. Reptiles and Amphibians of the Northeastern States. 

 Zoological Society of Philadelphia. 



Ditmars, R. L. 1936. The Reptiles of North America. Doubleday, Doran 

 5? Co. New York. 



Pope, C. H. 1939. Turtles of the United States and Canada. Alfred A. 

 Knopf. New York. 



Stejneger, L. and Barbour, T. 1943. A Check List of North American Am- 

 phibians and Reptiles. Fifth edition. Harvard Univ. Press. Cambridge, 

 Mass. 



The names used as first choice in the turtle key are those given in the fifth 

 edition of Stejneger and Barbour's Check List. 



440 



