25 



Dugand, A. 1975. Serpentifauna de la llanura costera del Caribe. 



Caldasia 11 (53): 61-82. 

 Durant, P. 1974. Factors which affect the development of two 



species of tropical tadpoles. Bol. Soc. Venezolana Cienc. 



Natur. 31(128-129): 21-32. 

 . 1976. Analogias y diferencias sero-ovoproteicas entre dos 



especies del genero Atelopus (Amphibia: Salientia) de los andes 



Venezolanos. Acta Cientifica Venezolana 27: 79-84. 

 , and J.W. Dole. 1974. Food of Atelopus oxyrhynchus (Anura: 



Atelopodidae) in a Venezuela cloud forest. Herpetologica 30: 



183-187. 

 , and J.W. Dole. 1974. Informaciones sobre la ecologia de 



Atelopus oxyrhynchus (Salientia: Atelopodidae) en el bosque 



nublado de San Eusebio, Estado Merida. Rev. Forestal Venezolana 



17(24): 83-91. 

 , and J.W. Dole. 1975. Aggressive behavior in Colostethus 



(= Prostherapis ) collaris (Anura: Dendrobatidae) . Herpetologica 



31: 23-26. 



Echternacht, A. 1970. Taxonomic and ecological notes on some 



Middle and South American lizards of the genus Ameiva 



(Teiidae) . Breviora 354: 1-9. 

 Edwards, S. 1971. Taxonomic notes on South American Colostethus 



with descriptions of two new species (Amphibia, Dendrobatidae) . 



Proc. Biol. Soc. Washington 84: 147-162. 

 . 1974. A phenetic analysis of the genus Colostethus (Anura, 



Dendrobatidae). Ph.D. Dissertation, Univ. Kansas, Lawrence. 

 . 1974. Taxonomic notes on South American dendrobatid frogs of 



the genus Colostethus . Occ. Pap. Mus. Natur. Hist. Univ. 



Kansas 30: 1-14. 

 Emsley, M. G. 1963. A consideration of the list of snakes 



recorded from Trinidad. Copeia 1963(3): 576-577. 

 Ernst, C. H. 1981. Rhinoclemmys Fitzinger. Neotropical forest 



terrapins. Cat. Amer. Amphib. Rept. 274: 1-2. 

 . 1981. Rhinoclemmys punctularia (Daudin) . Spotted-legged 



terrapin. Cat. Amer. Amphib. Rept. 276: 1-2. 

 . 1981. Phrynops qibbus (Schweigger) . Keeledback sideneck. 



Cat. Amer. Amphib. Rept. 279: 1-2. 

 . 1983. Geographic variation in the neotropical turtle, 



Platemys platycephala . J. Herpetol . 17: 2. 

 Estes, R. 1975. Fossil Xenopus from the paleocene of South 



America and the zoogeography of pipid frogs. Herpetologica 31: 



263-278. 

 Etheridge, R.A. 1968. A review of the iguanid genera Uracentron and 



Strobilurus . Bull. Brit. Mus. Nat. Hist. Zool. 17: 47-64. 

 . 1970. A review of the South American iguanid genus Plica . 



Bull. Brit. Mus. (Nat. Hist.) Zool. 19: 237-256. 



Fair, W. , R.A. Mittermeier, and A.G.J. Rhodin. 1978. Blood 

 biochemistry and relations among Podocnemis turtles 

 (Pleurodira, Pelomedusidae) . Comp. Biochem. Physiol. 61B: 139- 

 143. 



Fernandez, M. 1972. Apuntes y observaciones sobre morrocoyes 

 venezolanos. Natura, Caracas 48-49: 9-12. 



. 1975. Morrocoyes albinos. Natura, Caracas (56) : 25-26. 



