Classification
(master taxon) [(master rank)]Animalia [kingdom]
Crustacea [phylum]
Malacostraca [class]
Eumalacostraca [subclass]
Eucarida [superorder]
Decapoda [order]
Pleocyemata [suborder]
Brachyura [infraorder]
Grapsoidea [superfamily]
Grapsidae [family]
Sesarminae [subfamily]
Aratus [genus]
Aratus pisonii [species]