the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Mollusca (phylum)
Bivalvia (class)
Pteriomorphia (subclass)
Arcoida (order)
Arcidae (family)
Scapharca (genus)
[hide inferior taxa]
Scapharca broughtonii (species)
Scapharca inaequivalvis (species)