| 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 | Luidia difficilis | --> |
| 75510 | Liu, W., Y. Liao and X. Li 2006 A new sea-star species (Asteroidea: Luidiidae) from the South China Sea. The Raffles Bulletin of Zoology 54(2):441-445. | 2006 | Luidia difficilis | 442-444;figs.1-2;tab.1 |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Luidia difficilis | --> |