Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nemertea Schultze, 1851 - ribbon worms
     Class Enopla Schultze, 1851
       Order Hoplonemertea Hubrecht, 1879
         Suborder Monostilifera Brinkmann, 1917
           Genus Amphiporus Ehrenberg, 1831
           Genus Annulonemertes Berg, 1985
           Genus Carcinonemertes Coe, 1902
           Genus Emplectonema Stimpson, 1857
           Genus Geonemertes Semper, 1863
           Genus Paranemertes Coe, 1901