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 Testacea Linnaeus, 1758
             Genus Lepas Linnaeus, 1758
               5 Lepas balanus Linnaeus, 1758
               6 Lepas tintinabulum Linnaeus, 1758
               7 Lepas testudinaria Linnaeus, 1758
               8 Lepas mitella Linnaeus, 1758
               9 Lepas anatifera Linnaeus, 1758 - duck barnacle