Spondylosium planum
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Arkavatnet | Rogaland, Norway | 3 | 1 | 0 | 1994-09-12 | |
| Auklandsvatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-15 | |
| Bergvikvatnet | Nordland, Norway | 1 | 1 | 0 | 1990-09-04 | |
| Fløyta | Akershus, Norway | 1 | 1 | 0 | 1990-06-07 | |
| Gravdalsvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-18 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-09-13 | |
| Holdalsvatn | Nordland, Norway | 1 | 1 | 0 | 1994-09-05 | |
| Laksådalsvatnet | Nordland, Norway | 2 | 1 | 0 | 1991-06-05 | |
| Laupen | Innlandet, Norway | 1 | 1 | 0 | 1989-09-27 | |
| Lianvatnet | Trøndelag, Norway | 3 | 1 | 0 | 1990-10-17 | |
| Skjelbreidvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Spildervatnet | Nordland, Norway | 4 | 1 | 0 | 1993-06-11 | |
| Tornesvatnet | Rogaland, Norway | 2 | 1 | 0 | 1994-09-05 | |
| Tømmervatnet | Troms, Norway | 1 | 1 | 0 | 1994-09-16 |