Systema naturæ - nature Universum - universe see [unranked] Mundus Plinius naturalia - natural bodies Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758 Class Pisces nom. inval. - fishes see Class Pisces Linnaeus, 1758 Order Chondropterygii nom. inval. see Order Nantes Linnaeus, 1758 Genus Petromyzon nom. inval. see Genus Petromyzon Linnaeus, 1758 Enneophthalmus nom. inval.