| Citation | de Beer, M., 1990 Distribution patterns of regular sea urchins (Echinodermata: Echinoidea) across the Spermonde Shelf, SW Sulawesi (Indonesia). In pp. 165-174 De Ridder, C., Dubois, P., Layahe, M. C. and Jangoux, M. (eds.). Echinoderm Research. Balkema, Rotterdam. |
| Ref. | 81254 de Beer, M., 1990 |
| Page | 168 |
| Named Used as Valid | Echinothrix calamaris |
| Locality | |
| Distribution | Indonesia. |