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Repositorio Atenea de la Facultad de Ciencias, UNAM >
Browsing by Author Zweifel, Richard G
Showing results 9 to 28 of 38
| Preview | Issue Date | Title | Author(s) | | 1959 | Cnemidophorus tigris variolosus, a revived subspecies of whiptail lizard from Mexico | Zweifel, Richard G |
| 1982 | Color pattern morphs of the kingsnake (Lampropeltis getulus) in southern California: distribution and evolutionary status | Zweifel, Richard G |
| 1970 | Descriptive notes on larvae of toads of the debilis group, genus Bufo | Zweifel, Richard G |
| 1965 | Distríbution and mating calls of the Panamanian toads, Bufo coccifer and B. granulosus | Zweifel, Richard G |
| 1955 | Ecology, distribution and systematics of frogs of the Rana boylei group | Zweifel, Richard G |
| 1967 | Eleutherodactylus augusti | Zweifel, Richard G |
| 2003 | Encyclopedia of reptiles & amphibians | Cogger, Harold G; Zweifel, Richard G; Kirshner, David. |
| 1981 | Genetics of color pattern polymorphism in the California kingsnake | Zweifel, Richard G |
| 1974 | Lamprolpeltis zonata (Lockington ex Blainville): California mountain kingsnake | Zweifel, Richard G |
| 1961 | Larval development of the tree frogs Hyla arenicolor and Hyla wrightorum | Zweifel, Richard G |
| 1977 | Liste der rezenten Ampbibien und Reptilien | Zweifel, Richard G |
| 1954 | Notes en the distribution of some reptiles in western Mexico | Zweifel, Richard G |
| 1952 | Notes en the lizarda of the Coronados Islands, Baja California, Mexico | Zweifel, Richard G |
| 1962 | Notes on the distribution and reproduction of the lizard Eumeces callicephalus | Zweifel, Richard G |
| 1952 | Pattern varlation and evolution of the mountain kingsnake, Lampropeltis zonata | Zweifel, Richard G |
| 1968 | Rana boylii Baird | Zweifel, Richard G |
| 1968 | Rana tarahumarae | Zweifel, Richard G |
| 1961 | Relationships of two whiptall lizards (genus Cnemidophorus) in western Mexico | Zweifel, Richard G |
| 1968 | Reproductive biology of anurans of the arid southwest, with emphasis on adaptation of embryos to temperature | Zweifel, Richard G |
| 1968 | Reproductive biology of Anurans of the arid Southwest, with emphasis on adaptation of embryos to temperature. | Zweifel, Richard G |
Showing results 9 to 28 of 38
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