| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Gaetanus affinis | (Sars, 1905) | synonym | No | junior synonym |
new combination |
| Gaetanus brevispinus | (Sars, 1900) | accepted name | Yes | senior synonym |
new combination |
| Gaidius brevispinus | (Sars, 1900) | synonym | No | senior synonym |
new combination |