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Occasional papers of the California Academy of Sciences no.26 (1961:Mar.)
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Description of a new species of snake of the colubrid genus Gyalopion from the state of Zacatecas, Mexico
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By: Leviton, Alan E - Banta, Benjamin Harrison.
Type: Article
In: Occasional papers of the California Academy of Sciences
Volume: 26
Date: 1961
Page Range: 1--4
Publication info: San Francisco California Academy of Sciences