the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Nematoda (phylum)
Secernentea (class)
Strongylida (order)
Ancylostomatidae (family)
Ancylostoma (genus)
[hide inferior taxa]
Ancylostoma caninum (species)
Ancylostoma ceylanicum (species)
Ancylostoma duodenale (species)