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 Genus Murex Linnaeus, 1758 Varicosi: suturis rotundatis torosis crassisque Murex rana Linnaeus, 1758 Murex rana var. rubeta Linnaeus, 1758