| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Monostiolum atlanticum (Coelho, Matthews & Cardoso, 1970) |
Western Atlantic | 1.5 | |
| Monostiolum auratum Watters & Finlay, 1989 |
Western Atlantic | 2.14 | |
| Monostiolum harryleei García, 2006 |
Western Atlantic | 1.89 | |
| Monostiolum rosewateri Watters & Finlay, 1989 |
Western Atlantic | 1.9 | |
| Monostiolum tesselatum (Reeve, 1844) |
Western Atlantic | ||
| Monostiolum tessellatum (Reeve, 1844) |
Western Atlantic | 1.8 |