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 Pinna Linnaeus, 1758
               223 Pinna rudis Linnaeus, 1758 - rough penshell
               224 Pinna nobilis Linnaeus, 1758
               225 Pinna muricata Linnaeus, 1758
               226 Pinna rotundata Linnaeus, 1758
               227 Pinna saccata Linnaeus, 1758
               228 Pinna digitiformis Linnaeus, 1758
               229 Pinna lobata Linnaeus, 1758
               230 Pinna pennacea Linnaeus, 1758