| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Colus kroyeri | (Möller, 1842) | accepted name | Yes | senior synonym |
new combination |
| Plicifusus arcticus | (Philippi, 1850) | synonym | No | junior synonym |
new combination |
| Plicifusus johanseni | Dall, 1919 | synonym | No | junior synonym |
original combination |
| Plicifusus kroyeri | (Möller, 1842) | synonym | No | senior synonym |
new combination |