| Main Ref. | Hiatt, R.W. and D.W. Strasburg, 1960 | ||
| Predator stage | recruits/juv. | ||
| Food I | zoobenthos | ||
| Food II | echinoderms | ||
| Food III | n.a./other echinoderms | ||
| Food group | Spatangoida | Prey Stage/Part | juv./adults |
| Food name | heart urchins | ||
| Commonness | 14 | common (6-20%) | |
| Country | Marshall Is. | ||
| Remark | Locality: Arno and Eniwetok. | ||