Position in a system
| 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 - bilaterians |
| subdivisio | Protostomia Grobben, 1908 - protostomes |
| phylum | Nematoda Rudolphi, 1808 - nematodes |
| class | Secernentea |
| order | Strongylida Molin, 1861 |
| superfamily | Ancylostomatoidea |
| family | Ancylostomatidae |
| subfamily | Ancylostomatinae Looss, 1905 |
| tribus | Ancylostomatinea Looss, 1905 |
| genus | Ancylostoma Dubini, 1843 |
| subgenus | Ancylostoma Dubini, 1843 |
| species | Ancylostoma japonica Fukuda & Katsurada, 1925 |