| Citation | Higo, S., P. Callomon and Y. Goto, 1999 Catalogue and bibliography of the marine shell-bearing Mollusca of Japan. Osaka: Elle scientific publications. 938 p. |
| Ref. | 75835 Higo, S., P. Callomon and Y. Goto, 1999 |
| Page | 62 |
| Named Used as Valid | Calliostoma unicum |
| Locality | Dejima harbour, Nagasaki city, Kyushu, Japan. |
| Distribution | China, Japan and Korea. |