| Nominal Species (n = 10) | Present allocation (n = 9) | Ref. |
|---|---|---|
| Sperosoma biseriatum Doederlein, 1901 | Sperosoma biseriatum | 19 |
| Phormosoma bursarium Agassiz, 1881 | Phormosoma bursarium | 81020 |
| Sperosoma giganteum Agassiz & Clark, 1907 | Sperosoma giganteum | 19 |
| Asthenosoma heteractis Bedford, 1900 | Asthenosoma heteractis | 81020 |
| Asthenosoma ijimai Yoshiwara, 1897 | Asthenosoma ijimai | 81020 |
| Araeosoma owstoni Mortensen, 1904 | Araeosoma owstoni | 81020 |
| Phormosoma placenta Thomson | Phormosoma placenta | 19 |
| Phormosoma rigidum Agassiz, 1881 | Phormosoma rigidum | 88950 |
| Asthenosoma varium Grube, 1868 | Asthenosoma varium | 800 |
| Phormosoma zealandiae Agassiz, 1904 | Phormosoma rigidum | 3477 |