| Citation | Nishikawa, T., 1991 The ascidians of the Japan Sea. 2. Publications of the Seto Marine Biological Laboratory 35 (1-3) 1999:25-170. |
| Ref. | 7481 Nishikawa, T., 1991 |
| Page | 84 |
| Named Used as Valid | Symplegma japonica |
| Locality | |
| Distribution | Sea of Japan. |