| Citation | Lambert, G. and K. Sanamyan, 2001 Distaplia alaskensis sp.nov. (Ascidiacea, Aplousobranchia) and other new ascidian records from south-central Alaska, with a redescription of Ascidia columbiana (Huntsman, 1912). Can. J. Zool. 79:1766-1781. |
| Ref. | 1745 Lambert, G. and K. Sanamyan, 2001 |
| Page | 1770-1771 |
| Named Used as Valid | Chelyosoma productum |
| Locality | |
| Distribution | Alaska, British Columbia, Southern California. |