original description(ofHelicina velutina Guppy, 1868)Guppy, R. J. L. (1868). On the terrestrial mollusks of Dominica and Grenada, with an account of some new species from Trinidad. <em>Annals and Magazine of Natural History.</em> (4) 1: 429-442., available online athttps://biodiversitylibrary.org/page/22248819 page(s): 434-435 [details]
basis of recordGuppy, R. J. L. (1895). On a landshell of the genus <i>Helicina</i> from Grenada and on the classification of the Helicinidae. <em>Proceedings of the Victoria Institute of Trinidad.</em> Pt. 2: 72-77., available online athttps://www.biodiversitylibrary.org/page/54372350 page(s): 76 [details]
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