Organism
Animalia
Bilateria
Protostomia
Ecdysozoa
Arthropoda
Crustacea
Malacostraca
Eumalacostraca
Eucarida
Decapoda
Pleocyemata
Caridea
Atyoidea
Lophozoa
Mollusca
Gastropoda
[Orthogastropoda]
Opisthobranchia
Cephalaspidea
[Atyidae]