Imperium naturae C. Linnaeus, 1758 - nature
   Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
     Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
       Order Apodes Linnaeus, 1758 see Order Anguilliformes Rafinesque, 1810
         143 Genus Muraena Linnaeus, 1758
         144 Genus Gymnotus Linnaeus, 1758
         145 Genus Trichiurus Linnaeus, 1758
         146 Genus Anarhichas Linnaeus, 1758
         147 Genus Ammodytes Linnaeus, 1758
         148 Genus Ophidium Linnaeus, 1766 see Genus Ophidion Linnaeus, 1758
         149 Genus Stromateus Linnaeus, 1758
         150 Genus Xiphias Linnaeus, 1758