| Species name | Common name | Distribution | Max. Length (cm) | 
|---|---|---|---|
| Notoplax curvisetosa (Leloup, 1960) | Western Indian Ocean | ||
| Notoplax holosericea (Nierstrasz, 1905) | Western Central Pacific | ||
| Notoplax magellanica Thiele, 1909 | Tufted spiny sea cradle | Southeast Pacific |