Vetigastropoda Salvini-Plawen, 1980 - archaeogastropods s.l. Family Pleurotomariidae Swainson, 1840 - slit snails Genus Perotrochus Fischer, 1885 Perotrochus caledonicus Bouchet & Metivier, 1982 1 Perotrochus midas F.M. Bayer, 1965 2 Perotrochus amabilis (Bayer, 1963) - lovely slitsnail