Granigyra granuliferaGranigyra granulifera is a species of sea snail, a marine gastropod mollusk, unassigned in the superfamily Seguenzioidea.DescriptionThe size of the shell varies between 1.3 mm and 1.7 mm.DistributionThis species is found at bathyal depths in the Mediterranean Sea; in the Atlantic Ocean off Madeira and the Bay of Biscay.