| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Cerithium bigemma | Watson, 1880 | synonym | No | senior synonym |
original combination |
| Inella bigemma | (Watson, 1880) | synonym | No | senior synonym |
new combination |
| Strobiligera bigemma | (Watson, 1880) | accepted name | Yes | senior synonym |
new combination |