kingdom Animalia > phylum Annelida > order Sipuncula > family Sipunculidae > genus Sipunculus > subgenus Sipunculus (Cryptosomum)
| Rank | Subgenus |
| Status | unaccepted |
| Aphia ID | urn:lsid:marinespecies.org:taxname:423955 |
| Valid name | Phascolion |
| Valid Aphia ID | 136025 |
| Environments |
marine, |
This status of this taxon in WoRMS is unaccepted. The accepted taxon for Sipunculus (Cryptosomum) Quatrefages, 1865 is Phascolion.