| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 1840 | Cutler, E.B. 1994 The Sipuncula. Their systematics, biology and evolution. Ithaca: Comstock publishing Associates, 433 p. | 1994 | Phascolosoma capitatum | 168 |
| 429 | Hansson, H.G. 1998 NEAT (North East Atlantic Taxa): South Scandinavian marine "Aschelminth" (except Nematoda, which are treated separately and some other species poor phyla Check-List. Internet pdf Ed., http://www.tmbl.gu.se | 1998 | Apionsoma capitata | --> |
| 93586 | Saiz-Salinas, J.I. and S. Pagola-Carte 1999 Sipuncula of the Magellan area compared with adjacent regions of Antarctica. Scientia Marina 63(Suppl 1):227-232. | 1999 | Phascolosoma capitatum | 229 |
| 19 | Bisby, F.A., M.A. Ruggiero, K.L. Wilson, M. Cachuela-Palacio, S.W. Kimani, Y.R. Roskov, A. Soulier-Perkins and J. van Hertum 2005 Species 2000 & ITIS Catalogue of Life: 2005 Annual Checklist. CD-ROM; Species 2000: Reading, U.K. | 2005 | Apionsoma capitata | --> |