original description(ofHelix trochiscus L. Pfeiffer, 1861)Pfeiffer, L. (1861). Descriptions of forty-seven new species of land-shells, from the collection of H. Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> 29(2): 20–29, pls 2–3. London [30 May]., available online athttps://biodiversitylibrary.org/page/28672456 page(s): 20 [details]
basis of recordBoettger, C. R. (1922). Die Landschneckenfauna der Aru- und der Kei-Inseln. <em>Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft.</em> 35: 355-417., available online athttps://www.biodiversitylibrary.org/page/48257013[details]
Present Inaccurate Introduced: alien Containing type locality
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