Genus: Margaritifera
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Billaelva | Innlandet, Norway | 1 | 1 | 1 | 2007-10-29 | |
| Fallslelva. Ved Fløyta | Innlandet, Norway | 1 | 1 | 0 | 2007-09-20 | |
| Haukåselva | Vestland, Norway | 1 | 1 | 1 | 2011-11-23 | |
| Lauvåselva | Trøndelag, Norway | 1 | 1 | 0 | 2007-07-23 | |
| Litlvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1992-09-10 | |
| Nøklegårdselva, Andebu Vestfold | Vestfold, Norway | 1 | 1 | 0 | 2012-04-09 |
Sustain.no is provided by the Norwegian Centre for Science Education