| Nominal Species (n = 4) | Present allocation (n = 4) | Ref. |
|---|---|---|
| Pectanthis asteroides Haeckel, 1879 | Ptychogastria asteroides | 2992 |
| Tesserogastria musculosa Beyer, 1959 | Tesserogastria musculosa | 19 |
| Crossota pedunculata Bigelow, 1913 | Pectis pedunculata | 3477 |
| Ptychogastria polaris Allman, 1878 | Ptychogastria polaris | 19 |