46 
Iverson, J.B. 1985. Checklist of the Turtles of the World with 
English Common Names. Soc. Stud. Amph. Rept. Herpetol. Circ. 
14:1-14. 
Iverson, J.B. 1992. A Revised Checklist with Distribution 
Maps of the Turtles of the World. Privately printed. 363 p. 
Janzen, D.H. ed. 1983. Costa Rican Natural History. Univ. 
Chicago Press. Chicago, Illinois. 816 p. 
Jaramillo, C.A. 1984. Revision of Centrolenella of Panama. 
B.S. Thesis. Univ. Seattle. Seattle, Washington. 
Jaramillo, C.A., F.E. Jaramillo, and R. Ibanez. 1988. 
Centrolenella colymbiphvllum . Herpetol. Rev. 19(3):59. 
Jaramillo, F.E, C.A. Jaramillo, and R. Ibanez. 1988. 
Centrolenella vireovittata . Herpetol. Rev. 19(3):59. 
Jaslow, A.P. 1982. Factors affecting the distribution and 
abundance of tadpoles in a lowland tropical stream. Diss. 
Abstr. Int. (B)43(6):1722-1723. 
Johnson, J.D. 1977. The taxonomy and distribution of the 
neotropical whipshake Masticophis mentovarius (Reptilia, 
Serpentes, Colubridae). J. Herpetol. 11:287-309. 
Johnson, J.D. 1982. Masticophis mentovarius . Cat. Amer. Amphib. 
Rept. 295:1-4. 
Jungfer, K.H. 1985. Beitrag zug Kenntnis von Dendrobates 
speciosus 0. Schmidt, 1857. Salamandra 21:263-280. 
Jungfer, K.H. 1988. Froschlurche von Fortuna, Panama I. 
Microhylidae, Ranidae, Bufonidae, Hylidae. Herpetofauna 
10(54):25-34. 
Jungfer, K.H. 1988. Froschlurche von Fortuna, Panama II. 
Hylidae(2), Centrolenidae, Dendrobatidae. Herpetofauna 
10(56):6-12. 
Jungfer, K.H. 1988. Froschlurche von Fortuna, Panama III. 
Leptodactylidae. Herpetofauna 10(57):15-21. 
Keiser, E.D. Jr. 1974. A systematic study of the neotropical 
vine snake Oxvbelis aeneus (Wagler). Bull. Texas Mem. Mus 
22:1-51. 
Keiser, E.D. Jr. 1982. Oxvbelis aeneus (Wagler). Cat. Amer. 
Amphib. Rept. 305:1-4. 
Keiser, E.D. Jr. 1991. Bibliography of the Genus Oxvbelis 
Wagler (Serpentes: Colubridae). Smithsonian Herp. Inf. 
Serv. 86:1-45. 
King, F.W. and R.L. Burke. 1989. Crocodilian, Tuatara, and 
Turtle Species of the World A Taxonomic and Geographic 
Reference. Assoc. Syst. Coll. Washington, D.C. 216 p. 
Klauber, L.M. 1945. The geckos of the Genus Coleonvx with 
descriptions of new subspecies. Trans. San Diego Soc. Nat. 
Hist. 10:133-216. 
Kluge, A.G. 1968. Phylogenetic relationships of the gekkonid 
lizard Genera Lepidodactvlus Fitzinger, Hemiphvllodactvlus 
Bleeker, and Pseudoqekko Taylor. Philippine J. Sci. 1966 
(95):331-352. 
Kluge, A.G. 1979. The gladiator frogs of Middle America and 
Colombia-a reevaluation of their systematics. Occ. Pap. 
Mus. Zool. Univ. Mich. 688:1-24. 
