| Citation | Lambert, G., 2003 New records of ascidians from the NE Pacific: a new species of trididemnum, range extension and redescription of Aplidiopsis pannosum (Ritter, 1899) including its larva, and several non-indigenous species. Zoosystema 25(4):665-679. |
| Ref. | 1749 Lambert, G., 2003 |
| Page | 667-671 |
| Named Used as Valid | Trididemnum alexi |
| Locality | |
| Distribution | USA, British Columbia. |