| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Idotea balthica | (Pallas, 1772) | accepted name | Yes | senior synonym |
new combination |
| Idotea balthica basteri | Audouin, 1827 | accepted name | No | senior synonym |
original combination |
| ! Idotea baltica | (Pallas, 1772) | synonym | No | senior synonym |
new combination |
| ! Idothea baltica | (Pallas, 1772) | synonym | No | senior synonym |
new combination |