| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 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 | Haploposthia lactomaculata | --> |
| 1999 | Tekle, Y.I. 2004 A new Haploposthia species (Acoela) from the Swedish west coast. Sarsia 89:85-90. | 2004 | Haploposthia lactomaculata | 86 |