Tomopleura oscitansTomopleura oscitans is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.DescriptionThe size of the shell varies between 15 mm and 23 mm. It has 9 whorls in the teleoconch.DistributionThis marine species occurs off Durban Bay, South Africa, to southern Mozambique; littoral to about 27m on clean sand.