| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Arcuatula demissa | (Dillwyn, 1817) | synonym | No | senior synonym |
new combination |
| Geukensia demissa | (Dillwyn, 1817) | accepted name | Yes | senior synonym |
new combination |
| Ischadium demissa | (Dillwyn, 1817) | synonym | No | senior synonym |
new combination |
| ! Mytilus demissa | Dillwyn, 1817 | synonym | No | senior synonym |
original combination |
| Mytilus demissus | Dillwyn, 1817 | synonym | No | senior synonym |
original combination |
| Volsella demissa | (Dillwyn, 1817) | synonym | No | senior synonym |
new combination |