| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Kopua japonica Moore, Hutchins & Okamoto, 2012 |
Japanese deepwater clingfish | Northwest Pacific | 2.96 |
| Kopua kuiteri Hutchins, 1991 |
Pacific | 2.6 | |
| Kopua nuimata Hardy, 1984 |
Southwest Pacific | 2.7 | |
| Kopua vermiculata Shinohara & Katayama, 2015 |
Twilight clingfish | Northwest Pacific |