Pilsbry, H. A. & Ferriss, J. H. (1917). Mollusca of the southwestern states, VIII: The Black Range, New Mexico. Proceedings of the Academy of Natural Sciences of Philadelphia. 69 (1): 83-107, plates 7-10.
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Pilsbry, H. A. & Ferriss, J. H.
1917
Mollusca of the southwestern states, VIII: The Black Range, New Mexico.
Proceedings of the Academy of Natural Sciences of Philadelphia