| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Monoplex aquatilis (Reeve, 1844) |
Aquatile hairy triton | Circumtropical | 12 |
| Monoplex exaratus (Reeve, 1844) |
Indo-West Pacific | ||
| Monoplex gemmatus (Reeve, 1844) |
Jeweled triton | Pacific Ocean | |
| Monoplex intermedius (Pease, 1869) |
Intermediate hairy triton | Indo-Pacific | 6 |
| Monoplex mundus (Gould, 1849) |
Indo-Pacific and Western Central Atlantic | 3.8 | |
| Monoplex nicobaricus (Röding, 1798) |
Indo-Pacific and Atlantic Ocean | ||
| Monoplex parthenopeus (Salis Marschlins, 1793) |
Giant triton | Indo-Pacific, Atlantic Ocean and Mediterranean | 18 |
| Monoplex pilearis (Linnaeus, 1758) |
Indo-Pacific | ||
| Monoplex vespaceus (Lamarck, 1822) |
Dwarf hairy triton | Indo-Pacific and Western Atlantic | 4.1 |