Guppy, R. J. L. (1895). On a landshell of the genus Helicina from Grenada and on the classification of the Helicinidae. Proceedings of the Victoria Institute of Trinidad. Pt. 2: 72-77.
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Guppy, R. J. L.
1895
On a landshell of the genus <i>Helicina</i> from Grenada and on the classification of the Helicinidae