| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Boreotrophon smithi | (Dall, 1902) | synonym | No | junior synonym |
new combination |
| Boreotrophon stuarti | (Smith, 1880) | synonym | No | senior synonym |
new combination |
| Nipponotrophon stuarti | (Smith, 1880) | accepted name | Yes | senior synonym |
new combination |