Cochlostoma hellenicumCochlostoma hellenicum is a species of a small land snail with an operculum, a terrestrial gastropod mollusc in the family Cochlostomatidae.TaxonomyFauna Europaea recognises two subspecies, the nominotypical C. h. subsp. hellenicum and C. h. subsp. athenarum.Geographic distributionC. hellenicum is endemic to Greece, where it occurs in the central part of the country and the islands of Tinos, Evvia, and Xeronisi.