| Synonym | Author | CoL Status | Valid | Synonymy | Combination |
|---|---|---|---|---|---|
| Thyasira flexuosa | (Montagu, 1803) | accepted name | Yes | senior synonym |
new combination |
| ! Thyasira flexusa | (Montagu,) | synonym | No | senior synonym |
new combination |
| Thyasira inaequalis | (Verrill & Bush, 1898) | synonym | No | junior synonym |
new combination |
| Thyasira inequalis | (Verrill & Bush, 1898) | synonym | No | junior synonym |
new combination |
| Thyasira insignis | (Verrill & Bush, 1898) | synonym | No | junior synonym |
new combination |
| Thyasira plana | (Verrill & Bush, 1898) | synonym | No | junior synonym |
new combination |