13 



Duellman, W.E. 1991b. A new species of 1 eptodactyl id frogs, genus 



Phyl lonastes , from Peru. Herpetol ogica , 47(1): 9-13. 

 Duellman, W.E. 1992a. El eutherodactylus bearsei , new species 



(Anura: Leptodactyl idae) from northeastern Peru. Occ. Pap. 



Mus. Nat. Hist. Univ. Kansas, 150: 1-7. 

 Duellman, W.E. 1992b. A new species of the El eutherodactylus 



conspicil latus group (Anura: Leptodactyl idae) from 



northeastern Peru. Rev. Esp. Herp., 6: 23-29. 

 Duellman, W.E. and M.L. Crump. 1974. Speciation in frogs of the 



Hyla parviceps group in the Upper Amazon Basin. Occ. Pap. 



Mus. Nat. Hist. Univ. Kansas, 23:1-40. 

 Duellman, W.E. and R. de Sa . 1988. A New genus and species of 



South American hylid frog with a highly modified tadpole. 



Tropical Zoology, 1:117-136. 

 Duellman, W.E. and T.H. Fritts. 1972. A taxonomic review of the 



southern Andean marsupial frogs (Hylidae: Gas trotheca ) . Occ. 



Pap. Mus. Nat. Hist. Univ. Kansas, 9: 1-37. 

 Duellman, W.E. and 0. Ochoa . 1991. A new species of Buf o (Anura: 



Bufonidae) from the Andes of Southern Peru. Copeia, 1991(1): 



137-141. 

 Duellman, W.E. and R. Schulte. 1992. Description of a new species 



of Buf o from northern Peru with comments on phenetic groups 



of South America toads (Anura: Bufonidae). Copeia, 1992(1): 



162-172. 

 Duellman, W.E. and R. Schulte, 1993. New species of centrolenid 



frogs from northern Peru. Occ. Pap. Mus. Nat. Hist. Univ. 



Kansas, 155: 1-33. 

 Duellman, W.E. and C.A. Toft. 1979. Anurans from Serranla de 



Sira, Amazonian Peru: Taxonomy and biogeography . 



Herpetologica, 35(1): 60-70. 

 Duellman, W.E. and L. Trueb. 1988. Cryptic Species of hylid 



marsupial frogs in Peru. J. Herpetol., 22 ( 2 ): 159-179 . 

 Duellman, W.E. and L. Trueb. 1989. Two new treefrogs of the Hyla 



parviceps group from the Amazon Basin in Southern Peru. 



Herpetologica, 45(1):1-10. 

 Duellman, W.E. and J.J. Wiens. 1993. Hylid frogs of the genus 



Scinax Wagler, 1830, in Amazonian Ecuador and Peru. Occ. 



Pap. Mus. Nat. Hist. Univ. Kansas, 153: 1-57. '. ,. 

 Duellman, W.E. and E.R. Wild. 1993. Anura amphibians from tHe 



Cordillera de Huancabamba , northern Peru: Systematics, 



ecology, and biogeography. Occ. Pap. Mus. Nat. Hist. Univ. 



Kansas, 157: 1-53. 

 Duellman, W.E, J.E Cadle and D.C. Cannatella. 1988. A New species 



of terrestrial Phyl lomedusa (Anura: Hylidae) from Southern 



Peru. Herpetologica, 44(l):91-95. 

 Dumeril, A.M.C., G. Bibron. 1841. Erpetologie generale, ou 



Historie Naturelle complete des Reptiles. Vol. 8 Roret . 



Paris. 784 pp. 

 Dunn, E.R. 1942. The American caecilians. Bull. Mus. Comp. Zool . , 



91: 439-540. 

 Dunn, E.R. 1949. Notes on the South American frog of the family 



Microhylidae. Amer. Mus. Nat. Hist. Novitates, 1419: 1-21. 



