Cloeosiphon

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Sipuncula
Classis: Phascolosomatidea
Ordo: Aspidosiphoniformes
Familia: Aspidosiphonidae
Genus: Cloeosiphon
Species: C. aspergillus