A Biological Survey of Colorado (open access)

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."
Date: August 17, 1911
Creator: Cary, Merritt
System: The UNT Digital Library
The Rabbits of North America (open access)

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."
Date: August 31, 1909
Creator: Nelson, E. W.
System: The UNT Digital Library
Revision of the Skunks of the Genus Chincha (open access)

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."
Date: August 31, 1901
Creator: Howell, Arthur H.
System: The UNT Digital Library
The Sea Otter in the Eastern Pacific Ocean (open access)

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.
Date: August 1969
Creator: Kenyon, Karl W.
System: The UNT Digital Library
Revision of the Jumping Mice of the Genus Zapus (open access)

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.
Date: August 8, 1899
Creator: Preble, Edward A.
System: The UNT Digital Library
Revision of the American Pikas (Genus Ochotona) (open access)

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.
Date: August 21, 1924
Creator: Howell, Arthur H.
System: The UNT Digital Library