Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
   Anaspidea Fischer, 1883 see [unranked] Aplysiomorpha Pelseneer, 1906
     Family Aplysiidae Lamarck, 1809
       Genus Aplysia Linnaeus, 1767 - seahare
         1 Aplysia depilans Gmelin, 1791
         2 Aplysia fasciata Poiret, 1789
         3 Aplysia punctata Cuvier, 1803
         4 Aplysia parvula Guilding, in Mörch, 1863 - pygmy seahare