| Closteriaceae Bessey, 1907 |
| Closterium Nitzsch ex Ralfs, 1848 |
| Closterium acerosum Ehrenb. ex Ralfs, 1848 |
| Closterium dianae Ehrenb. ex Ralfs, 1848 |
| Closterium leiblenii Kütz. ex Ralfs, 1848 |
| Closterium lunula Ehrenb. & Hemprich ex Ralfs, 1848 |
| Closterium lunula var. lunula Ehrenb. & Hemprich ex Ralfs, 1848 |
| Closterium pseudolunula Borge, 1909 |
| Echinella Acharius, 1810 |
| Echinella circularis Grev., 1823 |