Phascolosoma
Animalia | Sipuncula | Phascolosomatidea | Phascolosomatiformes | Phascolosomatidae | Phascolosoma | Phascolosoma nigrescens
Phascolosoma
Biota | Animalia | Annelida | Sipuncula | Phascolosomatidae | Phascolosoma
|  | Lamarck, 1802 [as Annelides] | Stephen, 1965 | Stephen & Edmonds, 1972 | Leuckart, 1828