the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Mollusca (phylum)
Gastropoda (class)
Pulmonata (subclass)
Basommatophora (order)
Planorbidae (family)
[hide inferior taxa]
Biomphalaria alexandrina (species)
Biomphalaria glabrata (species)
Bulinus truncatus (species)
Helisoma trivolvis (species)