Thaleia nisonisThaleia nisonis is a species of small, ectoparasitic sea snail, a marine gastropod mollusk or micromollusk in the family Eulimidae.DistributionT. nisonis can be found in Atlantic waters, ranging from South Carolina to Brazil.DescriptionThe maximum recorded shell length is 9 mm.HabitatMinimum recorded depth is 50 m. Maximum recorded depth is 1930 m.