| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Mactra polynyma | (Stimpson, 1860) | synonym | No | senior synonym |
new combination |
| Mactromeris polynyma | (Stimpson, 1860) | accepted name | Yes | senior synonym |
new combination |
| Spisula polynyma | (Stimpson, 1860) | synonym | No | senior synonym |
new combination |