| 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 | Pseudodistoma michaelsini | --> |
| 1756 | Primo, C. and E. Vazquez 2004 Zoogeography of the southern African ascidian fauna. Journal of Biogeography 31:1987-2009. | 2004 | Pseudodistoma michaelsini | 2000-2001 |