the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Craniata (subphylum)
Vertebrata (no rank)
Gnathostomata (superclass)
Actinopterygii (class)
Neopterygii (no rank)
Teleostei (no rank)
Gymnotiformes (order)
Apteronotidae (family)
Apteronotus (genus)
[hide inferior taxa]
Apteronotus albifrons (species)
Apteronotus leptorhynchus (species)