Imperium naturae C. Linnaeus, 1758 - nature
Ref: C. a Linné, 1766: 10-14
   Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
  Ref: C. a Linné, 1766: 15-20
     Class Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758
    Ref: C. a Linné, 1766: 20, 419-424
       Order Abdominales Linnaeus, 1758
      Ref: C. a Linné, 1766: 499
         Genus Esox Linnaeus, 1758
        Ref: C. a Linné, 1766: 424, 515