| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Echinoecus klunzingeri | Miyake, 1939 | synonym | No | junior synonym |
original combination |
| Echinoecus pentagonus | (Milne-Edwards, 1879) | accepted name | Yes | senior synonym |
new combination |
| Echinoecus pentagonus | Rathbun, 1894 | ambiguous synonym | No | homonym |
original combination |
| Echinoecus rathbunae | Miyake, 1939 | synonym | No | junior synonym |
original combination |
| Eumedon convictor | Bouvier & Seurat, 1905 | synonym | No | junior synonym |
original combination |
| Eumedon pentagonus | Milne-Edwards, 1879 | synonym | No | senior synonym |
original combination |
| Eumedonus convictor | (Bouvier & Seurat, 1905) | synonym | No | junior synonym |
new combination |
| Eumedonus pentagonus | (Milne-Edwards, 1879) | synonym | No | senior synonym |
new combination |
| Eumedonus petiti | Gravier, 1922 | synonym | No | junior synonym |
original combination |
| Liomedon pentagonus | (Milne-Edwards, 1879) | synonym | No | senior synonym |
new combination |