Pilsbry, H. A. (1910). Land Mollusca of the Panama Canal Zone. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 62: 502-509., available online athttps://www.biodiversitylibrary.org/page/5526436 page(s): 507, pl. 37 fig. 8-9 [details]
original descriptionPilsbry, H. A. (1910). Land Mollusca of the Panama Canal Zone. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 62: 502-509., available online athttps://www.biodiversitylibrary.org/page/5526436 page(s): 507, pl. 37 fig. 8-9 [details]
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