Architectonica laevigataArchitectonica laevigata is a species of sea snail, a marine gastropod mollusk in the family Architectonicidae, which are known as the staircase shells or sundials.DescriptionThe diameter of the shell attains 30 mm.DistributionThis marine species can be found in tropical and warm-temperate regions in the Central and Eastern Indian Ocean, in the Red Sea, off the Philippines; also off Queensland, Australia.