| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Actinia undata | Linnaeus | synonym | No | junior synonym |
original combination |
| Actinia undata | Müller, 1778 | synonym | No | senior synonym |
original combination |
| Cylista undata | (Müller) | synonym | No | junior synonym |
new combination |
| Cylista undata | Müller | synonym | No | senior synonym |
original combination |
| Paractis undata | NONE | synonym | No | senior synonym |
|
| Sagartia undata | Müller | misapplied name | No | misidentification |
misapplied |
| Sagartiogeton undatus | (Müller, 1778) | accepted name | Yes | senior synonym |
new combination |