| Referens | Osorio, C. and V. Cantuarias, 1989 Vertical distribution of mollusks on the rocky intertidal of Easter Island. Pacific Science 3(4):302-315. |
| Ref. | 94138 Osorio, C. and V. Cantuarias, 1989 |
| Sida | 313 |
| Named Used as Valid | Arca umbonata |
| Observationsplats | |
| Distribution | USA. |