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 Chiton Linnaeus, 1758
             Genus Lepas Linnaeus, 1758
             Genus Pholas Linnaeus, 1758
             Genus Mya Linnaeus, 1758
             Genus "Myes" Linnaeus, 1758, orth. inval. see Genus Mya Linnaeus, 1758
             Genus Solen Linnaeus, 1758
             Genus Tellina Linnaeus, 1758
             Genus Donax Linnaeus, 1758
             Genus Venus Linnaeus, 1758
             Genus Spondylus Linnaeus, 1758
             Genus Chama Linnaeus, 1758
             Genus Arca Linnaeus, 1758
             Genus Ostrea Linnaeus, 1758 - flat oyster
             Genus Anomia Linnaeus, 1758
             Genus Mytilus Linnaeus, 1758
             Genus Pinna Linnaeus, 1758
             Genus Argonauta Linnaeus, 1758
             Genus Nautilus Linnaeus, 1758
             Genus Conus Linnaeus, 1758
             Genus Cypraea Linnaeus, 1758
             Genus Bulla Linnaeus, 1758
             Genus Voluta Linnaeus, 1758
             Genus Buccinum Linnaeus, 1758
             Genus Strombus Linnaeus, 1758
             Genus Murex Linnaeus, 1758
             Genus Trochus Linnaeus, 1758
             Genus Turbo Linnaeus, 1758
             Genus Helix Linnaeus, 1758
             Genus Nerita Linnaeus, 1758
             Genus Haliotis Linnaeus, 1758
             Genus Patella Linnaeus, 1758
             Genus Dentalium Linnaeus, 1758
             Genus Serpula Linnaeus, 1758
             Genus Cardium Linnaeus, 1758
               58 Cardium costatum Linnaeus, 1758
               59 Cardium cardissa Linnaeus, 1758
               60 Cardium hemicardium Linnaeus, 1758
               61 Cardium medium Linnaeus, 1758
               62 Cardium muricatum Linnaeus, 1758 see Acanthocardia aculeata (C. Linnaeus, 1767)
               63 Cardium echinatum Linnaeus, 1758 see Acanthocardia echinata (C. Linnaeus, 1758)
               64 Cardium ciliare Linnaeus, 1758
               65 Cardium tuberculatum Linnaeus, 1758 see Acanthocardia tuberculata (C. Linnaeus, 1758)
               66 Cardium isocardia Linnaeus, 1758
               67 Cardium fragum Linnaeus, 1758
               68 Cardium unedo Linnaeus, 1758
               69 Cardium muricatum Linnaeus, 1758
               70 Cardium magnum Linnaeus, 1758
               71 Cardium flavum Linnaeus, 1758
               72 Cardium laevigatum Linnaeus, 1758
               73 Cardium serratum Linnaeus, 1758
               74 Cardium triste Linnaeus, 1758
               75 Cardium corallinum Linnaeus, 1758
               76 Cardium solidum Linnaeus, 1758
               77 Cardium edule Linnaeus, 1758 see Cerastoderma edule (C. Linnaeus, 1758)
               78 Cardium rusticum Linnaeus, 1758
               79 Cardium pectinatum Linnaeus, 1758
               80 Cardium stultorum Linnaeus, 1758
               81 Cardium virgineum Linnaeus, 1758
               82 Cardium humanum Linnaeus, 1758