| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Hydrophis lamberti | (non Smith, 1917) | misapplied name | No | misidentification |
misapplied |
| Hydrophis ocellatus | Gray, 1849 | synonym | No | senior synonym |
original combination |
| Hydrophis ornatus | Gray, 1842 | accepted name | Yes | senior synonym |
original combination |
| Hydrophis ornatus ocellatus | Gray, 1849 | accepted name | No | senior synonym |
change in rank |
| Hydrophis ornatus ornatus | Gray, 1842 | synonym | No | senior synonym |
original combination |