| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 7512 | Michaelsen, W. 1918 Die Ptychobranchen und Diktyobranchen Ascidien des westlichen Indischen Ozeans. Jahrb. Hamburg wiss. Anst. Hamburg 2 Beih. 35:1-71. | 1918 | Ascidia pygmaea | --> |
| 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 | Ascidia pygmaea | --> |