| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Hippospongia communis | (Lamarck, 1813) | accepted name | Yes | senior synonym |
new combination |
| Hippospongia elastica | Lendenfeld, 1889 | synonym | No | junior synonym |
original combination |
| Hippospongia equina | Schulze | ambiguous synonym | No | other |
original combination |
| Spongia equina | Schmidt, 1862 | synonym | No | junior synonym |
original combination |