Pilsbry, H. A. (1933). Notes on the anatomy of Oreohelix. III. With descriptions of new species and subspecies. Proceedings of the Academy of Natural Sciences of Philadelphia. 85: 383-410, plates 14-15.
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Pilsbry, H. A.
1933
Notes on the anatomy of <i>Oreohelix</i>. III. With descriptions of new species and subspecies.
Proceedings of the Academy of Natural Sciences of Philadelphia