| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Ceramaster patagonicus | (Sladen, 1889) | accepted name | Yes | senior synonym |
new combination |
| Mediaster patagonicus | Verill, 1899 | synonym | No | junior synonym |
original combination |
| Pentagonaster patagonicus | Sladen, 1889 | synonym | No | senior synonym |
original combination |