| Referens | www.meerwasser-lexikon.de, 2015 Hydnophora rigida. https://www.meerwasser-lexikon.de/tiere/949_Hydnophora_rigida.htm [Accessed 06/17/2015]. |
| Ref. | 102581 www.meerwasser-lexikon.de, 2015 |
| Sida | |
| Named Used as Valid | Hydnophora rigida |
| Observationsplats | |
| Distribution |