57 



Shreve, B. 1957. Reptiles and amphibians from the Selva Lacandona, 



Chiapas, Mexico. Bull. Mus. Comp. Zool. Harvard 116:242-248. 

 Siebenrock, F. 1897. Das Kopfskelet der Schildkroten. Sber. Akad. 



Wiss. Wein. 106(1) :245-328. 

 Siebenrock, F. 1904. Schildkroten von Brasilien. Denkschr. Akad. Wiss. 



Wien. 76:1-28. [Abstract in Anz. Ost. Akad. Wiss. 1904:54-56.] 

 Siebenrock, F. 1905. Chelonologische Notizen. Zool. Anz. 28(12): 



460-468. 

 Siebenrock, F. 1906a. Schildkroten aus Sudmexiko. Zool. Anz. 



30(3/4) :94-102. 

 Siebenrock, F. 1906b. Eine neue C ino s t er num- Ar t aus Florida. 



Zool. Anz. 30:727-728. 

 Siebenrock, F. 1907. Die Schildkrotenfamilie Cinosternidae. Sitzungber. 



Akad. Wiss. Wien. 116(1) :527-599. 

 Siebenrock, F. 1909. Synopsis der rezenten Schildkroten. Zool. Jahrb., 



Suppl. 10:427-618. 

 Simpson, G. G. 1943. Turtles and the origin of the fauna of Latin 



America. Amer. J. Sci. 241(7) :413-429. 

 Sites, J. W. , Jr. 1978. Chromosome evolution in kinosternid turtles; 



preliminary findings. Swanews 1978(1/2) :35. 

 Sites, J. W. , J. W. Bickham and M. W. Haiduk. 1979. Derived X chromosome 



in the turtle genus Staurotypus . Science 206:1410-1412. 

 Sites, J. W., Jr., J. W. Bickham, M. W. Haiduk and J. B. Iverson. 1979. 



Banded karyotypes of six taxa of kinosternid turtles. Copeia 1979 



(4):692-698. 

 Skinner, M. F. and C. W. Hibbard. 1972. Early Pleistocene pre-glacial 



and glacial rocks and faunas of northcentral Nebraska. Bull. Amer. 



Mus. Natur. Hist. 148(1) :1-148. 

 Skorepa, A. C. and J. E. Ozment. 1968. Habitat, habits, and variation 



of Kinostemon subrubrum in southern Illinois. Trans. Illinois 



State Acad. Sci. 61:247-251. 

 Slevin, J. R. 1926. Expedition to the Revillagigedo Islands, Mexico, in 



1925. III. Notes on a collection of reptiles and amphibians from 



the Tres Marias and Revillagigedo Islands, and west coast of Mexico, 



with description of a new species of Tantilla . Proc. California 



Acad. Sci. (4)15(3) :195-207. 

 Slevin, J. R. 1934. A handbook of reptiles and amphibians of the Pacific 



states including certain eastern species. Special Pubis. California 



Acad. Sci. 73 pp. 

 Smets, G. 1887. Les cheloniens. Revue Quest. Scient., Brussels 21: 



382-408. 

 Smith, C. G. 1968. Variations in the blood proteins of the musk turtle, 



Sternotherus odoratus (Latreille) . Diss. Abst. 28B:3931-3932. 

 Smith, D. D. 1974. Geographic distribution: Klnosternon flavescens 



f lavescens . Herpetol. Rev. 5(3) :69. 



