48 



Ortenburger, A. I. 1927a. A report on the amphibians and reptiles of 



Oklahoma. Proc. Oklahoma Acad. Sci. (for 1926) 6:89-100. 

 Ortenburger, A. I. 1927b. A list of reptiles and amphibians from the 



Oklahoma panhandle. Copeia (163):46-48. 

 Ortenburger, A. I. and B. Freeman. 1930. Notes on some reptiles and 



amphibians from western Oklahoma. Publ. Univ. Oklahoma Biol. 



Surv. 2(4):175-188. 



Palacky, J. 1898. La distribution geographique des cheloniens. Bull. 



Int. Acad. Tcheque Sci. 1:9-14. 

 Parker, M. V. 1937. Some amphibians and reptiles from Reelfoot Lake, 



Tennessee. J. Tennessee Acad. Sci. 12:60-86. 

 Parker, M. V. 1947. Notes on the herpetology of Clay and Greene 



counties, Arkansas. Proc. Arkansas Acad. Sci. 2:15-30. 

 Parks, H. B., F. Archibald and M. Caldwell. 1939. Amphibians and 



reptiles of the east Texas pine belt. Tech. Bull. Stephen F. 



Austin State Teachers' College 1:1-4. 

 Parmalee, P. W. 1955. Reptiles of Illinois. Illinois State Mus. Pop. 



Sci. Ser. 5:1-88. 

 Parsons, T. 1965. Observations on Herrera's mud turtle, Kinosternon 



herrerai Stejneger. International Zoo Yb. 5:171-173. 

 Parsons, T. S. 1968. Variation in the choanal structure of Recent 



turtles. Canadian J. Zool. 46:1235-1263. 

 Parsons, T. S. 1971. Nasal anatomy of Trionychid turtles. J. Morphol. 



135(3) :323-334. 

 Parsons, T. S. and J. E. Cameron. 1977. Internal relief of the 



digestive tract, pp. 159-223 In: Cans, C. and T. S. Parsons (eds.). 



Biology of the Reptilia. Vol. 6. Academic Press, London. 

 Parsons, T. S. and S. M. Stephens. 1968. The nasal anatomy of Kinosternon 



and Sternotherus (Testudines: Kinosternidae) . Canadian J. Zool. 



46:399-404. 

 Patterson, R. G, 1973. Why tortoises float. J. Herpetol. 7(4): 



373-375. 

 Pawley, R. 1971. Annual inventory. . . Reptile House, 1970, Chicago 



Zoological Park. Bull. Chicago Herpetol. Soc. 6(1):37-41. 

 Paynter, R. A., Jr. 1957. Biological investigations in the Selva 



Lacandona, Chiapas, Mexico. Bull. Mus. Comp. Zool. Harvard 116(4): 



191-298. 

 Pearse, A. S. 1936. Parasites from Yucatan. Publ. Carnegie Inst. 



(457):45-59. 

 Pearse, A. S. 1945. La fauna. Enciclopedia Yucatanense 1:109-271. 

 Penney, J. T. 1952. Distribution and bibliography of amphibians 



and reptiles of South Carolina. Univ. South Carolina Publ. 



Biol. l(l):l-27. 



