| Scientific Name | Author | English Name |
|---|---|---|
| Spirocodon saltator | (Tilesius, 1818) | |
| Scrippsia pacifica | Torrey, 1909 | |
| Polyorchis penicillatus | (Eschscholtz, 1829) | Penicillate jellyfish |
| Polyorchis montereyensis | Skogsberg, 1948 | |
| Polyorchis karafutoensis | Kishinouye, 1910 | |
| Polyorchis haplus | Skogsberg, 1948 |