| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Polymesoda arctata (Deshayes, 1854) |
Slender marsh clam | Western Central Atlantic | |
| Polymesoda caroliniana (Bosc, 1801) |
Carolina marshclam | Western Atlantic | 4 |
| Polymesoda erosa (Solander, 1786) |
Common geloina | Indo-West Pacific | 10.5 |
| Polymesoda inflata (Philippi, 1851) |
Inflated marsh clam | Eastern Pacific | |
| Polymesoda maritima (d'Orbigny, 1842) |
Southern marshclam | Western Central Atlantic | |
| Polymesoda sumatrensis (Sowerby, 1821) |
Western Pacific | ||
| Polymesoda triangula (Philippi, 1849) |
Triangular marsh clam | Western Central Atlantic |