Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758 [Class "Insecta" nom. inval. - insects] see Class Insecta Linnaeus, 1758 [Order "Aptera" nom. inval.] see Order Aptera Linnaeus, 1758 [Genus "Monoculus" nom. inval.] see Genus Monoculus Linnaeus, 1758, nom. oblit. ["Monoculus" Bradl., nom. inval.] see Pulex arborescens Swam., nom. inval.