| Species name | Common name | Distribution | Max. Length (cm) | 
|---|---|---|---|
| Ocnus brunneus (Forbes, 1840) | Northeast Atlantic | ||
| Ocnus glacialis (Ljungman, 1879) | Arctic and Northeast Atlantic | ||
| Ocnus grubei (von Marenzeller, 1874) | Mediterranean Sea | ||
| Ocnus koellikeri (Semper, 1868) | Atlantic and the Mediterranean | 27 | |
| Ocnus lacteus (Forbes, 1839) | Atlantic and the Mediterranean Sea | ||
| Ocnus petiti (Cherbonnier, 1958) | Mediterranean Sea | ||
| Ocnus planci (Brandt, 1835) | Atlantic and the Mediterranean Sea | ||
| Ocnus pygmaeus unspecified | Western Atlantic | ||
| Ocnus sacculus Pawson, 1983 | To be filled | 1.12 | |
| Ocnus surinamensis Semper, 1868 | Central Atlantic | ||
| Ocnus suspectus (Ludwig, 1875) | Western Central Atlantic | ||
| Ocnus syracusanus Grube, 1840 | Mediterranean |