| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Pseudocnus dubiosus (Semper, 1868) |
Dubious sea cucumber | Eastern Pacific | |
| Pseudocnus echinatus (von Marenzeller, 1882) |
Northwest Pacific | ||
| Pseudocnus intermedia (Théel, 1886) |
Antarctic Indian Ocean | 8 | |
| Pseudocnus laevigatus (Verrill, 1876) |
Southwest Pacific and Antarctic Indian Ocean | ||
| Pseudocnus leoninoides (Mortensen, 1925) |
Southwest Pacific | ||
| Pseudocnus lubricus Clark, 1901 |
Eastern Pacific | 5 | |
| Pseudocnus marionensis (Théel, 1886) |
Antarctic Indian Ocean | ||
| Pseudocnus pawsoni Won & Rho, 1998 |
To be filled | ||
| Pseudocnus perrieri unspecified |
Perrier's sea cucumber | Southern Ocean | |
| Pseudocnus sentus O'Loughlin & Alcock, 2000 |
To be filled | 2.7 |