Imperium naturæ C. Linnaeus, 1758 - nature
   Mundus Plinius - physical world
     naturalia - natural bodies
       Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Vermes Linnaeus, 1758 - worms see Phylum Vermes (C. Linnaeus, 1758)
           Order Mollusca Linnaeus, 1758 see Phylum Mollusca Linnaeus, 1758
             252 Genus Limax Linnaeus, 1758
             253 Genus Doris Linnaeus, 1758
             254 Genus Tethys Linnaeus, 1758, nom. rej.
             255 Genus Nereis Linnaeus, 1758
             256 Genus Aphrodita Linnaeus, 1758
             257 Genus Lernaea Linnaeus, 1758
             258 Genus Priapus Linnaeus, 1758, nom. rej. see Genus Priapulus Lamarck, 1816
             259 Genus Scyllaea Linnaeus, 1758
             260 Genus Holothuria Linnaeus, 1758, nom. rej. see Genus Physalia Lamarck, 1801
             261 Genus Triton Linnaeus, 1758
             262 Genus Sepia Linnaeus, 1758
             263 Genus Medusa Linnaeus, 1758
             264 Genus Asterias Linnaeus, 1758
             265 Genus Echinus Linnaeus, 1758