| Ref. | Description | Named Used | Page |
|---|---|---|---|
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. | Kinbergonuphis difficilis | |
| 7866 | Salazar-Vallejo, S.I. 1996 Lista de species y bibliografía de Poliquetos (Polychaeta) del Gran Caribe. | Kinbergonuphis difficilis | |
| 109340 | Smithsonian Institution 2016 Kinbergonuphis difficilis (Fauchald, 1982). | Kinbergonuphis difficilis |