basis of recordGuppy, R. J. L. (1866). Catalogue of the land and freshwater Mollusca of Trinidad. <em>Proceedings of the Scientific Association of Trinidad.</em> 1(1): 10-35., available online athttps://www.biodiversitylibrary.org/page/54074897 page(s): 17 [details]
additional sourceGuppy, R. J. L. (1872). Third series of additions to the catalogue of the land and freshwater Mollusca of Trinidad: with a revised list of all the species. <em>Proceedings of the Scientific Association of Trinidad.</em> 2(1): 17-25., available online athttps://www.biodiversitylibrary.org/page/54077973 page(s): 23 [details]
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