| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Acanthocardia echinata | (Linneaus, 1758) | accepted name | Yes | senior synonym |
new combination |
| Acanthocardium echinata | (Linneaus, 1758) | synonym | No | senior synonym |
new combination |
| Acanthocardium mucronata | (Poli, 1791) | synonym | No | junior synonym |
new combination |
| Cardium deshayesi | Payraudeau, 1826 | synonym | No | junior synonym |
original combination |
| Cardium duregnei | Monterosato, 1891 | synonym | No | junior synonym |
original combination |
| Cardium echinatum | Linneaus, 1758 | synonym | No | senior synonym |
original combination |
| Cardium flexuosum | Gmelin, 1791 | synonym | No | junior synonym |
original combination |
| Cardium novum | Coen, 1941 | synonym | No | junior synonym |
original combination |