| 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 | Pyurella hernia | --> |
| 3462 | Sanamyan, K.E. and N.P. Sanamyan 2005 Deep-water ascidians from the North Atlantic (RV Academic Keldysh, cruise 46 and 49). Journal of Natural History 39(22):2005-2021. | 2005 | Pyurella hernia | 2017-2020 |