Vetigastropoda Salvini-Plawen, 1980 - archaeogastropods s.l. Family Trochidae Rafinesque, 1815 - top snails Genus Calliostoma Swainson, 1840 Genus Lirularia Dall, 1909 Genus Umbonium Link, 1807 1 Genus Tegula Lesson, 1832 2 Genus Trochus Linnaeus, 1758