Species: Monoraphidium contortum
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1993-09-24 | |
| Buvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-12 | |
| Floen | Vestland, Norway | 1 | 1 | 0 | 1993-10-04 | |
| Frøylandsvatnet | Rogaland, Norway | 2 | 1 | 0 | 1994-09-28 | |
| Haukvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-22 | |
| Holdalsvatn | Nordland, Norway | 1 | 1 | 0 | 1994-09-05 | |
| Husavatnet | Vestland, Norway | 1 | 1 | 0 | 1991-09-17 | |
| Klevatn | Nordland, Norway | 1 | 1 | 0 | 1993-09-07 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Moensvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-11-07 | |
| Mosvatnet | Rogaland, Norway | 4 | 1 | 0 | 1991-09-25 | |
| Myklebustvannet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-25 | |
| Nøklevann | Oslo, Norway | 1 | 1 | 0 | 1989-09-15 | |
| Rørvatnet | Møre og Romsdal, Norway | 3 | 1 | 0 | 1990-10-18 | |
| Sillongen | Innlandet, Norway | 2 | 1 | 0 | 1990-05-22 | |
| Storavatnet | Vestland, Norway | 1 | 1 | 0 | 1991-10-20 | |
| Sælenvannet | Vestland, Norway | 1 | 1 | 0 | 1989-11-08 | |
| Tornesvatnet | Rogaland, Norway | 2 | 1 | 0 | 1991-05-30 | |
| Årstadtjødne | Rogaland, Norway | 1 | 1 | 0 | 1993-09-20 | |
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