Species: Gyromitus cordiformis
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Frøylandsvatnet | Rogaland, Norway | 1 | 1 | 0 | 1993-09-29 | |
| Granavatnet | Trøndelag, Norway | 2 | 1 | 0 | 1991-09-10 | |
| Holdalsvatn | Nordland, Norway | 1 | 1 | 0 | 1994-09-05 | |
| Hostadvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1990-09-12 | |
| Kruktjønna | Trøndelag, Norway | 1 | 1 | 0 | 1991-08-28 | |
| Laupen | Innlandet, Norway | 1 | 1 | 0 | 1989-09-27 | |
| Moensvatnet | Vestland, Norway | 1 | 1 | 0 | 1991-10-02 | |
| Nøklevann | Oslo, Norway | 1 | 1 | 0 | 1989-09-15 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Rundvannet | Troms, Norway | 1 | 1 | 0 | 1990-06-12 | |
| Storvannet | Nordland, Norway | 2 | 1 | 0 | 1990-09-07 | |