Sacoglossa Ihering, 1876 - sacoglossans
Count: 9f;30g
   Suborder Plakobranchacea Jensen, 1996 - non-shelled sacoglossans
  Count: 6f;23g
     Superfamily Plakobranchoidea Gray, 1840
    Count: 3f;10g
       Family Plakobranchidae Gray, 1840
      Count: 7g
         1 Genus Elysia Risso, 1818
        Count: -
         2 Genus Thuridilla Bergh, 1872
        Count: -
         3 Genus Placobranchus Boïé, 1824, orth. inval. see Genus Plakobranchus van Hasselt, 1824
        Count: -
         4 Genus Elysiella
        Count: -
         5 Genus Tridachia Deshayes, 1857
        Count: -
         6 Genus Tridachiella McFarland, 1924
        Count: -
         7 Genus Pattyclaya Marcus, 1982
        Count: -