| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 59898 | Billett, D.S.M. 1991 Deep-sea holothurians. Oceanography and Marine Biology: an Annual Review 29:259-317. | 1991 | Peniagone azorica | --> |
| 485 | UNEP-WCMC 2003 UNEP-WCMC Species Database. http://www.unep-wcmc.org. | 2003 | Peniagone azorica | --> |
| 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 | Peniagone azorica | --> |