| Citation | Higgins, R.C., 1974 Specific status of Echinocardium cordatum, E. australe and E. zealandicum (Echinoidea: Spatangoida) around New Zealand, with comments on the relation of morphological variation to environment. Journal of Zoology 173(4)451-475. |
| Ref. | 105718 Higgins, R.C., 1974 |
| Page | |
| Named Used as Valid | Echinocardium cordatum |
| Locality | |
| Distribution | New Zealand. |