| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Isometra flavescens John, 1938 |
Antarctic Atlantic | ||
| Isometra graminea John, 1938 |
Antarctic Atlantic | ||
| Isometra hordea John, 1938 |
Antarctic Atlantic | ||
| Isometra vivipara Mortensen, 1917 |
Southern Ocean |