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Repositorio Atenea de la Facultad de Ciencias, UNAM >
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Showing results 16014 to 16033 of 26345
| Preview | Issue Date | Title | Author(s) | | 1963 | Observations on reptiles of Cerralvo Island, Baja California, Mexico | Banks, Richard C.; Wesley M. Farmer |
| 1970 | Observations on salamander spermatocyte chromosomes during the first meiotic division | Kezer, James |
| 1985 | Observations on satellite males in Hyla chrysoscelis, Hyla picta and Pseudacris triseriata | Roble, Steven M |
| 1974 | Observations on sea snakes in the vicinity of Acapulco, Guerrero, Mexico | Peterson, H. William; Hobart M. Smith |
| 1881 | Observations on Siredon lichenoides | Carlin, William Edward |
| 1979 | Observations on some cranial foramina in the Ranidae | Case, Susan M |
| 1868 | Observations on some specimens of Vertebrata presented by William M. Gabb of San Francisco, which were procured by him in western Nevada and the northern part of Lower California | Cope, Edward Drinker |
| 1973 | Observations on the acoustic behavior of crocodilians | Campbell, Howard W |
| 1978 | Observations on the activity and diet of the cavernicolous lizard Lepidophyma smithii (Sauria: Xantusiidae) | Mautz, WIlliam J.; William López |
| 1976 | Observations on the behavioral ecology of three species of Imantodes (Reptilia, Serpentes, Colubridae) | Henderson, Robert W.; Max A. Nickerson |
| 1979 | Observations on the blood-vascular system of Rana palmipes | Szarski, Henryk; Elzbieta Kujbida |
| 1863 | Observations on the box-tortoises, with the descriptions of three new Asiatic species | Gray John Edward |
| 1935 | Observations on the California lyre snake, Trimorphodon vandenburghi Klauber, with notes on the effectiveness of its venom | Cowles, Raymond B.; Charles Mitchill Bogert |
| 1919 | Observations on the chelonians of North America | Shufeldt, Robert Wilson |
| 1950 | Observations on the cranial anatomy of Anniella and a comparison with that of other burrowing lizards | Bellairs, Angus d'Arcy |
| 1984 | Observations on the distribution and biology of Crocodylus moreletii in Mexico | Lazcano-Barrero, Marco Antonio; Alejandro Cabrera |
| 1986 | Observations on the distribution and biology of some Yucatán Peninsula amphibians and reptiles | Dundee, Harold A, Ernest A. Liner; Victor Rico |
| 1965 | Observations on the distribution and ecology of Barker's anole, Anolis barkeri Schmidt (Iguanidae) | Kennedy, J. P |
| 1968 | observations on the ecology and behavior of Cnemidophorus guttatus and Cnemidophorus deppii (Sauria, Teíidaje) | Kennedy, J. P |
| 1975 | Observations on the ecology and survival outlook of the hawksbill turtle | Carr, Archie; Stephen Stancyk |
Showing results 16014 to 16033 of 26345
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