Cof resi-Sala, F. and E. Rodriquez de Vega. 1963. A new host record for 



Mesocoelium danforthi Hoffman, 1935 (Trematoda: Brachycoelidae) . Caribb. 



J. Sci. 3(4): 213. 

 Cook, M. T. 1929. Newspaper science: Snake-killing mongooses a plague to 



Porto Rico . Science 70(1817): 407. 

 Cope, E. D. 1861. "Remarks defining the following species of Reptilia 



Squamata." Proc. Acad. Nat. Sci. Philadelphia 1861: 75-77. 

 Cope, E. D. 1862. Contributions to neotropical saurology. Proc. Acad. Nat. 



Sci. Philadelphia 1862(1-2): 176-188. 

 Cope, E. D. 1862. Synopsis of the species of Holcosus and Ameiva , with 



diagnosis of new West Indian and South American Colubridae. Proc. Acad. 



Nat. Sci. Philadelphia 1862(1-2): 60-82. 

 Cope, E. D. 1868. Sixth contribution to the herpetology of tropical America. 



Proc. Acad. Nat. Sci. Philadelphia 1868: 305-313. 

 Cope, E. D. 1869. Seventh contribution to the herpetology of tropical 



America. Proc. Amer. Phil. Soc. 11: 147-169. 

 Cope, E. D. 1885. On the species of Iguaninae. Proc. Amer. Phil. Soc. 



23: 261-271. 

 Cuvier, G. 1829. La regne animal, distribue d'apres son organisation. 



Nouvelle Edition, Vol. 2. 



Daly, J. W. and H. Heatwole. 1966. Occurrence of carnosine in skin of 



certain leptodactylid frogs. Experientia 22: 1-3. 

 Danforth, S. T. 1925. Porto Rican herpetological notes. Copeia (147): 



76-79. 

 Danforth, S. T. 1926. Birds of Cartagena Lagoon, Porto Rico. J. Dept. 



Agric. P.R. 10: 1-136. (Contains herpetological observations) 

 Darlington, P. J., Jr. 1938. The origin of the fauna of the Greater 



Antilles, with discussion of dispersal of animals over water and 



through the air. Quart. Rev. Biol. 13(3): 274-300. 

 del Valle Atiles, F. 1887. Los animales vertebrados utiles y los 



dailinos a la agricultura del pals. Imprenta Boletin Mercantil, 



Puerto Rico. 

 Dent, J. N. 1956. Observations on the life history and development of 



Leptodactylus albilabris . Copeia 1956(4): 207-210. 

 Dexter, R. R. 1932. The food and habits of the imported toad Bufo marinus 



in the sugar cane sections of Puerto Rico. Fourth Congr. Int. Soc. 



Sugar Cane Tech. Bull. (74): 1-6. 

 Dodd, Jr., C. Kenneth. 1978. Mona and Monito Islands, outlook for the 



future. NSS News 1978: 134-135. 

 Drewry, G. 1970. Factors affecting activity of rain forest frog populations 



as measured by electrical recording of sound pressure levels. Chapter 



E-4 in H. T. Odum and R. F. Pigeon, eds. , A Tropical Rain Forest, U. S. 



Atomic Energy Commission, Oak Ridge. 

 Drewry, G. E. 1970. The role of amphibians in the ecology of Puerto Rican 



rain forest. Pages 16-63 in Puerto Rico Nuclear Center, Rain Forest 



Project annual report for 1970. 



