| Citation | Cutler, E.B., 1994 The Sipuncula. Their systematics, biology and evolution. Ithaca: Comstock publishing Associates, 433 p. | |
| Ref. | 1840 Cutler, E.B., 1994 | |
| Page | 173 | |
| Named Used as Valid | Phascolosoma agassizii agassizii | |
| Comment | Phascolosoma agassizii agassizii and Phascolosoma agassizii kurilense are both used as valid. | |
| Locality | ||
| Distribution |