Traits taxon details
original description
Pfeiffer, L. (1861). Descriptions of new land-shells, in the collection of H. Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> 29 (12–13): 190–196. London [30 September]., available online at https://biodiversitylibrary.org/page/28672714 page(s): 195 [details] 
additional source
Smith, E. A. (1900). Mollusca. In: Andrews, C. W. (Ed.), <em>A monograph of Christmas Island (Indian Ocean): Physical features and geology, with descriptions of the fauna and flora by numerous contributors.</em> pp. 54-59, pl. 8. , available online at https://www.biodiversitylibrary.org/page/36497341 page(s): 58 [details]
additional source
Smith, E. A. (1889). On the terrestrial mollusks of Christmas Island. <em>Proceedings of the Zoological Society of London.</em> 1888: 536–538., available online at https://www.biodiversitylibrary.org/page/28691241 page(s): 538. [details]
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