Phascolion (Isomya)
Literature
| Authors | Title |
Year of Publication |
|---|---|---|
| E.B. Cutler | The Sipuncula. Their systematics, biology and evolution | 1994 |
| E.B. Cutler; N.J. Cutler | A revision of the genera Phascolion Theel and Onchnesoma Koren and Danielssen (Sipuncula) | 1985 |