| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Ptychognathus barbatus (Milne-Edwards, 1873) |
Western Central Pacific | ||
| Ptychognathus crassimanus Finnegan, 1931 |
Eastern Central Pacific | ||
| Ptychognathus easteranus Rathbun, 1907 |
Eastern Pacific | ||
| Ptychognathus intermedius de Man, 1879 |
Eastern Central Pacific | ||
| Ptychognathus ishii Sakai, 1939 |
Western Pacific |