Tropidoturris simplicicingulaTropidoturris simplicicingula is a species of sea snail, a marine gastropod mollusk in the family Borsoniidae.There is one subspecies: Tropidoturris simplicicingula pondo Kilburn, 1986DescriptionThe size of the biconic shell attains 19.8 mm. Characteristic for this species is the fact that the shell has no axial ribs. The narrower spiral lirae are declivous. The shoulder cord is stronger to carinate.DistributionThis marine species occurs off Agulhas Bank, South Africa