Olivella defioreiOlivella defiorei is a species of small sea snail, marine gastropod mollusk in the subfamily Olivellinae, in the family Olividae, the olives. Species in the genus Olivella are commonly called dwarf olives.DescriptionShell size 10 mm.DistributionWestern Atlantic Ocean: Espírito Santo, Brazil at 1-2 meters depth, on sand.