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Catálogo completo de referencias bibliográficas relacionadas con anfibios de Ecuador
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Viviparity in Gastrotheca (Amphibia: Anura) and some considerations on the evolution of viviparity
Viviparity in Gastrotheca (Amphibia: Anura) and some considerations on the evolution of viviparity. Bulletin de la Societe Zoologique de France 82 317-320.
A review of the neotropical tree frogs of the genus Phyllomedusa
A review of the neotropical tree frogs of the genus Phyllomedusa. Occasional Papers of the Natural History Museum of Stanford University 5 1-90.
Histology of the skin of some toads and frogs
Histology of the skin of some toads and frogs. American Museum Novitates 1-27.
Guld att hämta ("Buried Gold and Anacondas")
Guld att hämta ("Buried Gold and Anacondas"). Gebers, Stockholm, 1956; Carit Andersens Forlag, Copenhague, 1956; Eberhard Brockhaus Wiesbaden, Germany, 1957; Demzuz, Moscú, 1958; Allen and Unwin, London, 1959; Folket i bild, Stockholm, 1959; Editorial Juventud, Barcelona, 1964; Tidens Bokklubb, Stock.
Two new Dendrobatid frogs from northern Venezuela
Two new Dendrobatid frogs from northern Venezuela. Occasional Papers of the Museum of Zoology, University of Michigan 1-9.
Anfíbios Anuros do Distrito Federal
Anfíbios Anuros do Distrito Federal. Memorias do Instituto Oswaldo Cruz 52:1 155-238.
The amphibians and reptiles of the coast and coastal sierra of Michoacan, Mexico
Peters, J. A. 1954. The amphibians and reptiles of the coast and coastal sierra of Michoacan, Mexico. Occ. Pap. Mus. Zool. Univ. Mich 554 1-37.
The frogs of the federal district of Brazil
The frogs of the federal district of Brazil. Amphibia, tropics, Anura, frog, descriptions 52:1 155-238.
A preliminary synopsis of the genera of American Microhylid frogs
Carvalho, A. 1954. A preliminary synopsis of the genera of American Microhylid frogs. Occasional Papers of the Museum of Zoology, University of Michigan 1-20 + 1 plate.
A preliminary synopsis of the genera of American microhylid frogs
A preliminary synopsis of the genera of American microhylid frogs. Occasional Papers of the Museum of Zoology, University of Michigan 555 1-19.
The amphibians and reptiles of the coast and coastal sierra of Michoacán, Mexico
The amphibians and reptiles of the coast and coastal sierra of Michoacán, Mexico. Occasional Papers of the Museum of Zoology, University of Michigan 554 1-37.
The systematics of vertebrate larvae
The systematics of vertebrate larvae. Systematic Zoology 2:2 63–75-63–75.
Anfíbios anuros do alto Solimões e Rio Negro. Apontamento sôbre algumas formas e suas vicariantes
Lutz, A. y Kloss, G. 1952. Anfíbios anuros do alto Solimões e Rio Negro. Apontamento sôbre algumas formas e suas vicariantes. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro 50 625-678.
Preliminary notes on the giant toad, Bufo marinus (Linn.), in the Philippine Islands
Preliminary notes on the giant toad, Bufo marinus (Linn.), in the Philippine Islands. Copeia 1952:4 281-282.
Definition of species
Definition of species. Turtox News 30:7-10.
Two new genera and a new family of Tropical American frogs
Two new genera and a new family of Tropical American frogs. Proceedings of the Biological Society of Washington 64 33-40.
The genetical structure of populations
Wright, M. 1949. The genetical structure of populations. Wiley Online Library 15:1 323-354.
El libro del escolar ecuatoriano, 4to grado
El libro del escolar ecuatoriano, 4to grado.
El libro del escolar ecuatoriano
El libro del escolar ecuatoriano.
The genera of plethodont salamanders in Mexico, Pt. 1
The genera of plethodont salamanders in Mexico, Pt. 1. The University of Kansas Science Bulletin 30, Pt. 1:12 189-232.