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 Acanthopterygii nom. inval. see Order Thoracici Linnaeus, 1758 Genus Gasterosteus nom. inval. see Genus Gasterosteus Linnaeus, 1758 1 Aculeatus nom. inval. 2 Spinachia nom. inval. 3 Pungitius nom. inval.