| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Colus planulus | Verrill, 1882 | synonym | No | junior synonym |
original combination |
| Colus pygmaeus | (Gould, 1841) | accepted name | Yes | senior synonym |
new combination |
| Fusus pygmaeus | Gould, 1841 | synonym | No | senior synonym |
original combination |