| Panoplax Stimpson, 1871 |
| Panoplax depressa Stimpson, 1871 |
| Panoplax mundata Glassell, 1935 |
| Prionoplax H. Milne-Edwards, 1852 |
| Prionoplax ciliata Smith, 1870 |
| Rhithropanopeus Rathbun, 1898 |
| Rhithropanopeus harrisii (Gould, 1841) |
| Robertsella Guinot, 1969 |
| Robertsella mystica Guinot, 1969 |
| Tetraxanthus Rathbun, 1898 |
| Tetraxanthus rathbunae Chace, 1939 |
| Thalassoplax Guinot, 1969 |
| Thalassoplax angusta Guinot, 1969 |