Discoidea A. J. Wagner, 1905 (invalid: junior homonym of Discoidea Agassiz, 1834 [Echinodermata]; Nesiocina is a replacement name) Nesiocina is a genus of tropical land snails with an operculum.

It is a genus of terrestrial gastropod mollusks in the subfamily Helicininae of the family Helicinidae.

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