Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
       Order Nudibranchia Cuvier, 1814 - "true" nudibranchs
         Suborder Arminina Odhner, 1934
           Superfamily Arminoidea Iredale & O'Donoghue, 1923 (1841)
             Family Arminidae Iredale & O'Donoghue, 1923 (1841)
               1 Genus Armina Rafinesque, 1814
               2 Genus Linguella Blainville, 1823
               3 Genus Histiomena Mörch, 1859
               4 Genus Pleurophyllidiella Eliot, 1903
               5 Genus Dermatobranchus van Hasselt, 1824