| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Eusyllis maxima | (Monro, 1930) | accepted name | Yes | senior synonym |
new combination |
| Pionosyllis anops | Hartman, 1953 | synonym | No | junior synonym |
original combination |
| Pionosyllis epipharynx | Hartman, 1953 | synonym | No | junior synonym |
original combination |
| Pionosyllis maxima | Monro, 1930 | synonym | No | senior synonym |
original combination |