Species: Staurodesmus megacanthus
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Lianvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-04 | |
| Myklebustvannet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-25 | |
| Sundkilen | Telemark, Norway | 1 | 1 | 0 | 1990-06-01 |