| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Cymatioa bibsae (Usticke, 1969) |
Western Atlantic | 1.1 | |
| Cymatioa cooki (Willett, 1937) |
Eastern Central Pacific | ||
| Cymatioa electilis (Berry, 1963) |
Wavy-edged kellyclam | Eastern Pacific |