Family: Synuraceae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Rørvatnet | Møre og Romsdal, Norway | 6 | 2 | 0 | 1994-09-07 | |
| Sagtjernet | Innlandet, Norway | 8 | 4 | 0 | 1994-10-04 | |
| Semsvannet | Akershus, Norway | 1 | 1 | 0 | 1994-05-18 | |
| Skarvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Skjelbreidvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Stavsjø | Innlandet, Norway | 5 | 2 | 0 | 1993-09-24 | |
| Steglevannet | Buskerud, Norway | 1 | 1 | 0 | 1989-10-06 | |
| Storavatnet | Vestland, Norway | 1 | 1 | 0 | 1991-10-20 | |
| Stordammen | Akershus, Norway | 1 | 1 | 0 | 1989-09-27 | |
| Storvannet | Nordland, Norway | 2 | 1 | 0 | 1990-09-07 | |
| Sundkilen | Telemark, Norway | 3 | 2 | 0 | 1990-06-01 | |
| Svartåstjern | Buskerud, Norway | 2 | 2 | 0 | 1990-09-24 | |
| Tornesvatnet | Rogaland, Norway | 4 | 2 | 0 | 1994-09-05 | |
| Tretjønnet | Agder, Norway | 1 | 1 | 0 | 1990-06-26 | |
| Tussvatnet | Nordland, Norway | 2 | 2 | 0 | 1990-06-07 | |
| Tveitavatnet | Vestland, Norway | 3 | 1 | 0 | 1991-05-23 | |
| Tveitevannet | Vestland, Norway | 1 | 1 | 0 | 1989-09-07 | |
| Vålåsjøen | Innlandet, Norway | 4 | 2 | 0 | 1993-06-09 | |
| Øksnevadtjørna | Rogaland, Norway | 3 | 2 | 0 | 1993-05-25 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 | |
| Årstadtjødne | Rogaland, Norway | 1 | 1 | 0 | 1996-10-11 | |
| Årungen | Akershus, Norway | 2 | 1 | 0 | 1990-09-17 | |
| Åstveitvannet | Vestland, Norway | 6 | 4 | 0 | 1991-09-27 | |
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