Liotella crassicostataLiotella crassicostata is a species of sea snail, a marine gastropod mollusk in the family Skeneidae,.DescriptionThe height of the shell attains 0.8 mm, its diameter 0.8 mm. The yellowish white shell has a helicoidal shape. Its umbilicus is narrow. The shell contains 2½ whorls, slightly flattened at the periphery and then rounded. The sculpture consists, besides the lines of growth, of strong ribs. The aperture is almost round. The columella is thickened.