| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Saxidomus gigantea (Deshayes, 1839) |
Washington butterclam | Eastern Pacific | 13 |
| Saxidomus nuttalli Conrad, 1837 |
California butterclam | East Pacific | |
| Saxidomus purpurata (Sowerby II, 1852) |
Purple butter clam | Northwest Pacific |