Genus: Oocystis
| Species | Artsinfo | Localities | Observations | Last observation |
|---|
| Oocystis sp. | | 56 | 92 | 2004-09-01 |
| Oocystis spp. | | 15 | 20 | 1994-09-05 |
| Oocystis cf. lacustris | | 4 | 6 | 1991-06-18 |
| Oocystis cf. rhomboidea | | 4 | 4 | 1991-08-28 |
| Oocystis rhomboidea | | 1 | 1 | 1989-09-19 |
| Oocystis sp. | | 1 | 1 | 1998-09-07 |