| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 868 | Hooge, M.D. and S. Tyler 2003 Two new acoels (Acoela, Platyhelminthes) from the central coast of California. Zootaxa 131:1-14. | 2003 | Haplogonaria phyllospadicis | 4 |
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Haplogonaria phyllospadicis | --> |
| 1155 | Hooge, M.D. and N. Eppinger 2005 New species of Acoela (Acoelomorpha) from the Gulf to California. Zootaxa 1009:1-14. | 2005 | Haplogonaria phyllospadicis | 6 |