| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| kingdom | Animalia Linnaeus, 1758 - animals |
| subregnum | Eumetazoa Butschli, 1910 |
| divisio | Bilateria Hatschek, 1888 |
| subdivisio | Protostomia Grobben, 1908 - protostomes |
| phylum | Arthropoda - Arthropods |
| subphylum | Crustacea Brünnich, 1772 - Crustaceans |
| class | Maxillopoda Dahl, 1956 |
| subclass | Branchiura Thorell, 1864 - fish lice |
| order | Arguloida Yamaguti, 1963 |
| family | Argulidae Leach, 1819 |
| genus | Argulus O.F. Müller, 1785 |
| species | Argulus fryeri Rushton-Mellor, 1994 |