Phylum: Hjuldyr (Rotifera)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Stikla | Østfold, Norway | 1 | 1 | 0 | 1994-06-08 | |
| Stikletjern | Østfold, Norway | 2 | 2 | 0 | 1996-08-19 | |
| Stokkavatnet | Rogaland, Norway | 1 | 1 | 0 | 2001-05-07 | |
| Storavatnet | Vestland, Norway | 13 | 6 | 0 | 1993-09-02 | |
| Store Bjørnevatnet | Agder, Norway | 2 | 2 | 0 | 1989-08-30 | |
| Storeidvatnet | Nordland, Norway | 1 | 1 | 0 | 1998-09-07 | |
| Sundkilen | Telemark, Norway | 1 | 1 | 0 | 1989-09-07 | |
| Svanevatnet | Rogaland, Norway | 3 | 2 | 0 | 1991-06-18 | |
| Svartåstjern | Buskerud, Norway | 1 | 1 | 0 | 1994-06-06 | |
| Sæbyvannet | Østfold, Norway | 1 | 1 | 0 | 2002-05-30 | |
| Sætertjern | Akershus, Norway | 8 | 3 | 0 | 1996-10-24 | |
| Tjennane | Telemark, Norway | 3 | 3 | 0 | 1994-05-11 | |
| Tjøtta | Nordland, Norway | 1 | 1 | 0 | 2013-10-01 | |
| Tornesvatnet | Rogaland, Norway | 3 | 2 | 0 | 1993-09-14 | |
| Tussvatnet | Nordland, Norway | 2 | 2 | 0 | 1990-06-07 | |
| Tveitevannet | Vestland, Norway | 1 | 1 | 0 | 1989-08-25 | |
| Tømmervatnet | Troms, Norway | 3 | 2 | 0 | 1994-09-16 | |
| Ulfsbakktjønn | Vestfold, Norway | 4 | 4 | 0 | 1996-09-25 | |
| Urevann | Nordland, Norway | 1 | 1 | 0 | 1995-09-15 | |
| Vangsmjøsa | Innlandet, Norway | 4 | 2 | 0 | 2021-05-31 | |
| Vangsmjøsa | Innlandet, Norway | 6 | 4 | 0 | 2022-08-25 | |
| Vikerauntjønna | Trøndelag, Norway | 3 | 2 | 0 | 1993-09-17 | |
| Ørsjøen | Innlandet, Norway | 1 | 1 | 0 | 1993-09-02 | |
| Øvre Storfjordvatnet | Nordland, Norway | 3 | 3 | 0 | 1989-09-01 | |
| Øymarksjøen | Østfold, Norway | 3 | 3 | 0 | 1997-05-29 | |
| Ålesundsaksla | Møre og Romsdal, Norway | 2 | 1 | 0 | 1999-10-07 | |
| Årnestangen | Akershus, Norway | 1 | 1 | 0 | 2003-06-06 | |
| Årstadtjødne | Rogaland, Norway | 3 | 2 | 0 | 1994-06-06 | |
| Årungen | Akershus, Norway | 7 | 3 | 0 | 1996-09-16 | |
| Åstveitvannet | Vestland, Norway | 3 | 3 | 0 | 1990-09-18 | |
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