| Species | Name Used |
|---|---|
| Didemnum beringense Romanov, 1977 | Didemnum beringense (p. ) |
| Didemnum gemmiparum Romanov, 1976 | Didemnum gemmiparum (p. ) |
| Didemnum transparentum Romanov, 1977 | Didemnum transparentum (p. ) |
| Diplosoma siphonale Romanov, 1977 | Diplosoma siphoniata (p. ) |
| Leptoclinides macrotestis Romanov, 1977 | Leptoclinides macrotestis (p. ) |
| Polysyncraton adenalis Romanov, 1977 | Polysyncraton adenalis (p. ) |