| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Alca torda | Linnaeus, 1758 | accepted name | Yes | senior synonym |
original combination |
| Alca torda islandica | Brehm, 1831 | accepted name | No | senior synonym |
original combination |
| Alca torda torda | Linnaeus, 1758 | accepted name | No | senior synonym |
original combination |