| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Benthoctopus hokkaidensis | (Berry, 1921) | synonym | No | senior synonym |
new combination |
| Benthoctopus violescens | Taki, 1964 | synonym | No | junior synonym |
original combination |
| Muusoctopus hokkaidensis | (Berry, 1921) | accepted name | Yes | senior synonym |
new combination |
| Polypus glaber | Sasaki, 1920 | ambiguous synonym | No | other |
original combination |
| Polypus hokkaidensis | Berry, 1921 | synonym | No | senior synonym |
original combination |