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
             266 Genus Chiton Linnaeus, 1758
             267 Genus Lepas Linnaeus, 1758
             268 Genus Pholas Linnaeus, 1758
             269 Genus Mya Linnaeus, 1758
             269.0 Genus "Myes" Linnaeus, 1758, orth. inval. see Genus Mya Linnaeus, 1758
             270 Genus Solen Linnaeus, 1758
             271 Genus Tellina Linnaeus, 1758
             272 Genus Cardium Linnaeus, 1758
             273 Genus Donax Linnaeus, 1758
             274 Genus Venus Linnaeus, 1758
             275 Genus Spondylus Linnaeus, 1758
             276 Genus Chama Linnaeus, 1758
             277 Genus Arca Linnaeus, 1758
             278 Genus Ostrea Linnaeus, 1758 - flat oyster
             279 Genus Anomia Linnaeus, 1758
             280 Genus Mytilus Linnaeus, 1758
             281 Genus Pinna Linnaeus, 1758
             282 Genus Argonauta Linnaeus, 1758
             283 Genus Nautilus Linnaeus, 1758
             284 Genus Conus Linnaeus, 1758
             285 Genus Cypraea Linnaeus, 1758
             286 Genus Bulla Linnaeus, 1758
             287 Genus Voluta Linnaeus, 1758
             288 Genus Buccinum Linnaeus, 1758
             289 Genus Strombus Linnaeus, 1758
             290 Genus Murex Linnaeus, 1758
             291 Genus Trochus Linnaeus, 1758
             292 Genus Turbo Linnaeus, 1758
             293 Genus Helix Linnaeus, 1758
             294 Genus Nerita Linnaeus, 1758
             295 Genus Haliotis Linnaeus, 1758
             296 Genus Patella Linnaeus, 1758
             297 Genus Dentalium Linnaeus, 1758
             298 Genus Serpula Linnaeus, 1758