| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Polymorphina diffusa Jones & Chapman, 1896 |
Western Central Pacific | ||
| Polymorphina lanceolata Reuss, 1851 |
Antarctic Indian Ocean | ||
| Polymorphina sororia Brady, 1884 |
Antarctic Indian Ocean | ||
| Polymorphina thouini d’Orbigny, 1826 |
Antarctic Indian Ocean |