| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Leptoptychaster kerguelensis | (Smith, 1876) | synonym | No | junior synonym |
new combination |
| Leptychaster accrescens | (Koehler, 1920) | synonym | No | senior synonym |
new combination |
| Macroptychaster accrescens | (Koehler, 1920) | accepted name | Yes | senior synonym |
new combination |