| Citation | Marshall, B.A., 1978 Cerithiopsidae (Mollusca: Gastropoda) of New Zealand, and a provisional classification of the family. New Zealand Journal of Zoology 5:47-120. |
| Ref. | 89371 Marshall, B.A., 1978 |
| Page | 89-92 |
| Named Used as Valid | Synthopsis acuminata |
| Locality | North East Island, Three Kings Islands, New Zealand. |
| Distribution | New Zealand. |