Ondina vitreaOndina vitrea is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.DescriptionThe length of shell varies between 3.5 mm and 4.5 mm. The white shell is pellucid. The sculpture is decussated by microscopic striae. The teleoconch contains seven convex whorls. The suture is submargined. The columella is obliquely uniplicate.DistributionThis species occurs in the following locations: European waters Mediterranean Sea : Sicily, Greece Portuguese Exclusive Economic Zone Spanish Exclusive Economic Zone