Technical Report Archive & Image Library (TRAIL) - 6 Matching Results
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- A Biological Survey of Colorado
- From introduction: "Report based chiefly on the field work prosecuted during 1905, 1906, 1907, and 1909. It is primarily a characterization of the several major distribution areas or life zones."
- The Rabbits of North America
- From introduction: "Revision to include all known hares and rabbits of North America from Isthmus of Panama to north Greenland."
- Revision of the Skunks of the Genus Chincha
- From introduction: "Classification changes to skunks of genus Chincha in order to clear up confusion resulting from previous attempts at classification."
- The Sea Otter in the Eastern Pacific Ocean
- Summary of the sea otter in relation to the eastern Pacific Ocean, including physical characteristics, habitat requirements, general behavior, food and feeding behavior, distribution and numbers, reproduction, limiting factors, and behavior in captivity.
- Revision of the Jumping Mice of the Genus Zapus
- Revision of genus Zapus based upon a study of more than 900 specimens, including nomenclature and skull and teeth figures.
- Revision of the American Pikas (Genus Ochotona)
- Discusses distribution, habitat, habits, pelage, molt, specimens, history, and nomenclature of pikas. Provides descriptions, locations, and a key for species and subspecies.