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 Thoracici Linnaeus, 1758 Genus Trigla Linnaeus, 1758 Trigla volitans Linnaeus, 1758 see Dactylopterus volitans (C. Linnaeus, 1758)