Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs
see Class Gastropoda Cuvier, 1795
Superorder Archaeogastropoda Thiele, 1925
Order Vetigastropoda Salvini-Plawen, 1980 - archaeogastropods s.l.
Superfamily Fissurelloidea Fleming, 1822 [monotypic]
Family Fissurellidae Fleming, 1822 - keyhole limpets
Subfamily Emarginulinae Children, 1834
Genus Tugali Gray, 1843
1 Subgenus Parmophoridea Wenz, 1938
2 Subgenus Tugalina Habe, 1953