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Inland Mollusks of Northern Mexico: I. The Genera Humboldtiana, Sonorella, Oreohelix and Ashmunella

Henry A. Pilsbry
Proceedings of the Academy of Natural Sciences of Philadelphia
Vol. 100 (1948), pp. 185-203
Stable URL: http://www.jstor.org/stable/4064418
Page Count: 22
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Inland Mollusks of Northern Mexico: I. The Genera Humboldtiana, Sonorella, Oreohelix and Ashmunella
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