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Repositorio Atenea de la Facultad de Ciencias, UNAM >
Browsing by Author Ruthven, Alexander Grant
Showing results 1 to 11 of 11
| Preview | Issue Date | Title | Author(s) | | 1907 | A collection of reptiles and amphibians from southern New Mexico and Arizona | Ruthven, Alexander Grant |
| 1909 | A contribution to the theory of orthogenesis | Ruthven, Alexander Grant |
| 1933 | A new skink from Mexico | Ruthven, Alexander Grant; Helen T. Gaige |
| 1933 | Description of a new Anolis from Yucatán | Ruthven, Alexander Grant |
| 1912 | On some amphibians and reptiles from the state of Vera Cruz, Mexico | Ruthven, Alexander Grant |
| 1933 | Thamnophis sauritus proximus (Say) in Central America | Ruthven, Alexander Grant |
| 1912 | The amphibians and reptiles collected by the University of Michigan-- Walker Expeditions in southern Veracruz, Mexico | Ruthven, Alexander Grant |
| 1922 | The amphibians and reptiles of the Sierra Nevada de Santa Marta, Colombia | Ruthven, Alexander Grant |
| 1913 | The local distribution of the reptile-amphibian fauna in southern Veracruz and its bearing on the origin of the savannahs | Ruthven, Alexander Grant |
| 1908 | Variations and genetic relationships of the garter snakes | Ruthven, Alexander Grant |
| 1908 | Variations and genetic relationships of the garter-snakes. | Ruthven, Alexander Grant |
Showing results 1 to 11 of 11
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