| Citation | HELCOM, 2012 Checklist of Baltic Sea macro-species. Baltic Sea Environment Proceedings No. 130, 206p. |
| Ref. | 128574 HELCOM, 2012 |
| Page | 162:No508. |
| Named Used as Valid | Echinocardium cordatum |
| Locality | |
| Distribution | Baltic Sea (Greater Belt, Little Belt and The Sound), and Kattegat. |