Sacoglossa Ihering, 1876 - sacoglossans
   Suborder Plakobranchacea Jensen, 1996 - non-shelled sacoglossans
     Superfamily Limapontioidea Gray, 1847
       1 Family Limapontiidae Gray, 1847
       1.0 Family Stiligeridae Iredale & O'Donoghue, 1923 see Family Limapontiidae Gray, 1847
       2 Family Hermaeidae Adams & Adams, 1854
       3 Family Polybranchiidae O'Donoghue, 1929 see Family Caliphyllidae Tiberi, 1881