| Citation | Monniot, F. and C. Monniot, 2001 Ascidians from the tropical western Pacific. Zoosystema 23(2):248-336. |
| Ref. | 1661 Monniot, F. and C. Monniot, 2001 |
| Page | 228-229 |
| Named Used as Valid | Synoicum castellatum |
| Locality | Queensland, Australia. |
| Distribution | Australia, Papua New Guinea. |