| 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 | Opisthosyllis nuchalis | --> |
| 83919 | Dean, H.K. 2009 Polychaetes and echiurans. p. 181-192 Wehrtmann, I.S. and Cortés, J. 2009. Marine biodiversity of Costa Rica, Central America. Springer 538pp. | 2009 | Opisthosyllis nuchalis | SPL 13.1 |
| 86671 | Miloslavich, P., J.M. Díaz, E. Klein, J.J. Alvarado, C. Díaz, J. Gobin, E. Escobar-Briones, Motta, J.J. Cruz, E. Weil, J. Cortés, A.C. Bastidas, R. Roberston, F. Zapata, A. Martín, J. Castillo, A. Kazandjian and M. Ortiz 2010 Marine biodiversity in the Caribbean: regional estimates and distribution patterns. PLoS ONE 5(8):e11916. | 2010 | Opisthosyllis nuchalis | --> |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Opisthosyllis nuchalis | --> |