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Explore the fascinating world of North American freshwater fish with "Geographic Variation in the North American Cyprinid Fish, Hybopsis gracilis," a detailed ichthyological study by Leonard J. Olund and Frank B. Cross. This meticulously prepared print edition examines the slender chub (Hybopsis gracilis) and its diverse geographic variations across North America. A vital resource for students and researchers of zoology, ichthyology, and geography, this book delves into the intricate details of fish biology and distribution. Discover the subtle differences within this widespread species and gain insights into the factors shaping their evolution. Originally published as part of a scientific series, this republication preserves a significant contribution to the understanding of North American fishes. Dive into the study of "Hybopsis gracilis" and its place in the natural world. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.