| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Mesonema pileus | Lesson, 1843 | synonym | No | senior synonym |
original combination |
| Orchistoma pileus | (Lesson, 1843) | accepted name | Yes | senior synonym |
new combination |
| Orchistoma steenstrupii | Haeckel, 1879 | synonym | No | junior synonym |
original combination |