| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 3327 | Medel, M.D. and P.J. López-González 1996 Updated catalogue of hydrozoans of the Iberian Peninsula and Balearic Islands, with remarks on zoogeography and affinities. Scientia Marina 60(1):183-209. | 1996 | Pachycordyle neapolitana | 193 |
| 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 | Pachycordyle neapolitana | --> |
| 3125 | Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly and J. van Hertum (eds.) 2007 Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. CD-ROM. Reading (UK): Species 2000. | 2007 | Pachycordyle neapolitana | --> |