Pilsbry, H. A. (1930). Results of the Pinchot South Sea Expedition,– II. Land mollusks of the Canal Zone, the Republic of Panama, and the Cayman Islands. Proceedings of the Academy of Natural Sciences of Philadelphia. 82: 339-354, figs. 1-6, pls. 28-30.
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Pilsbry, H. A.
1930
Results of the Pinchot South Sea Expedition,– II. Land mollusks of the Canal Zone, the Republic of Panama, and the Cayman Islands
Proceedings of the Academy of Natural Sciences of Philadelphia