Cosmetalepas concatenataCosmetalepas concatenata, common name the pitted keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.DescriptionThe size of the shell varies between 10 mm and 22 mm.DistributionThis marine species occurs off New South Wales to Abrolhos Islands and off Tasmania.