the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Myxiniformes (order)
Myxinidae (family)
Eptatretus (genus)
[hide inferior taxa]
Eptatretus burgeri (species)
Eptatretus cirrhatus (species)
Eptatretus stouti (species)
Eptatretus stoutii (species)