Lymnaeidae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Tussvatnet | Nordland, Norway | 2 | 1 | 0 | 1990-06-07 | |
| Tuvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 2001-06-11 | |
| Tveitavatnet | Vestland, Norway | 4 | 1 | 0 | 1992-10-01 | |
| Tveitevannet | Vestland, Norway | 5 | 1 | 0 | 2011-09-09 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1992-06-04 | |
| Vikerauntjønna | Trøndelag, Norway | 3 | 1 | 0 | 1993-09-15 | |
| Vålåsjøen | Innlandet, Norway | 4 | 1 | 0 | 1993-06-09 | |
| Øksnevadtjørna | Rogaland, Norway | 1 | 1 | 0 | 1993-05-28 | |
| Ørsjøen | Innlandet, Norway | 1 | 1 | 0 | 1995-09-07 | |
| Øvre Storfjordvatnet | Nordland, Norway | 2 | 1 | 0 | 1990-08-30 | |
| Ålvatnet | Trøndelag, Norway | 6 | 1 | 0 | 2013-09-04 | |
| Årungen | Akershus, Norway | 7 | 2 | 0 | 1996-09-16 |