Staurodesmus megacanthus
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Trondheim katedralskole | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-04 |
| Herøy vidaregående skule | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-25 |
| Kvitsund gymnas AS | Telemark, Norway | 1 | 1 | 0 | 1990-06-01 |