Guppy, R. J. L. (1866). On the terrestrial and fluviatile Mollusca of Trinidad. <em>Annals and Magazine of Natural History, series 3.</em> 17: 42-56., available online athttps://www.biodiversitylibrary.org/page/16057071 page(s): 49-50 [details]
original descriptionGuppy, R. J. L. (1866). On the terrestrial and fluviatile Mollusca of Trinidad. <em>Annals and Magazine of Natural History, series 3.</em> 17: 42-56., available online athttps://www.biodiversitylibrary.org/page/16057071 page(s): 49-50 [details]
additional sourceBland, T. (1869). Notes on the land-shells of Trinidad, Grenada and Dominica, and also of Curacao and Buen Ayre, W. I. <em>American Journal of Conchology.</em> 4(4): 177-192., available online athttps://www.biodiversitylibrary.org/page/16070286 page(s): 184 [details]