Taxonomy of the Chipmunks, Eutamias quadrivittatus and Eutamias umbrinus

"Taxonomy of the Chipmunks, Eutamias quadrivittatus and Eutamias umbrinus" by John A. White is a scientific publication written in the early to mid-20th century. This academic work focuses on the classification of two chipmunk species, discussing their anatomical and color differences, and emphasizing the need for precise measurement techniques in taxonomy. It provides a historical overview of the research surrounding these species and contributes to our understanding of rodent differentiation based on morphological features. The book delves into the taxonomy of the chipmunks Eutamias quadrivittatus and Eutamias umbrinus, detailing their distinct morphological traits, particularly skull and coloration characteristics that distinguish them from each other and other related species. White presents a comprehensive examination of various subspecies, providing diagnoses, descriptions, and comparisons that reveal their ecological distribution across North America. The study is methodologically rigorous, utilizing statistical measures and specimens across multiple regions, and it highlights the significance of geographical and ecological factors in the evolution and distribution of these chipmunks.

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