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 Donax Linnaeus, 1758
               83 Donax pubescens Linnaeus, 1758
               84 Donax rugosa Linnaeus, 1758
               85 Donax trunculus Linnaeus, 1758
               86 Donax denticulata Linnaeus, 1758
               87 Donax cuneata Linnaeus, 1758
               88 Donax scripta Linnaeus, 1758
               89 Donax muricata Linnaeus, 1758
               90 Donax irus Linnaeus, 1758