| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Amorphina nodosa | Fristedt, 1887 | synonym | No | junior synonym |
original combination |
| Cioxeamastia polycalypta | de Laubenfels, 1942 | synonym | No | junior synonym |
original combination |
| Eumastia sitiens | Schmidt, 1870 | synonym | No | senior synonym |
original combination |
| Halichondria sitiens | (Schmidt, 1870) | accepted name | Yes | senior synonym |
new combination |
| Spuma borealis | Miklucho-Maclay, 1870 | synonym | No | junior synonym |
original combination |