| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Cancer nucleus | Linnaeus, 1758 | synonym | No | senior synonym |
original combination |
| Cancer orbicularis | Olivi, 1792 | synonym | No | junior synonym |
original combination |
| Ilia laevigata | Risso, 1827 | synonym | No | junior synonym |
original combination |
| Ilia nucleus | (Linnaeus, 1758) | accepted name | Yes | senior synonym |
new combination |
| Ilia parvicauda | Costa, 1853 | synonym | No | junior synonym |
original combination |
| Ilia rugulosa | Risso, 1827 | synonym | No | junior synonym |
original combination |
| Leucosia leachii | Risso, 1822 | synonym | No | junior synonym |
original combination |