| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 89449 | Thander, A.S. 1992 The South African Museum’s Meiring Naude cruises. Part 18. Holothuroidea. Annals of the South African Museum 101(7):159-180. | 1992 | Orphnurgus natalasper | --> |
| 461 | Pawson, D.L. 2002 A new species of bathyal elasipod sea cucumber from New Zealand (Echinodermata: Holothuroidea). New Zealand Journal of Marine and Freshwater Research 36:333-338. | 2002 | Orphnurgus natalasper | --> |
| 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 | Orphnurgus natalasper | --> |