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 Pisces Linnaeus, 1758 see Superclass Pisces Linnaeus, 1758 Order Branchiostegi Linnaeus, 1758 Genus Balistes Linnaeus, 1758 - triggerfish Balistes monoceros Linnaeus, 1758 see Aluterus monoceros (C. Linnaeus, 1758)