| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Actinostola atrostoma | Stephenson, 1918 | synonym | No | senior synonym |
original combination |
| Actinostola callosa | (Verrill, 1882) | accepted name | Yes | senior synonym |
new combination |
| Catadiomene atrostoma | Stephenson, 1918 | synonym | No | junior synonym |
original combination |
| Urticina callosa | Verrill, 1882 | synonym | No | senior synonym |
original combination |