Genus: Cosmarium
| Område | Kommune (fylke) | Ant. obs. | Ant. arter | Ant. bilder | Siste obs. | |
|---|
| Arkavatnet | Rogaland, Norway | 6 | 2 | 0 | 1994-09-12 | |
| Bogstadvannet | Oslo, Norway | 1 | 1 | 0 | 1993-06-10 | |
| Erlevegen 37 | Agder, Norway | 1 | 1 | 0 | 1991-05-29 | |
| Gravdalsvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-18 | |
| Hammervatnet | Trøndelag, Norway | 6 | 1 | 0 | 1996-10-17 | |
| Harestuvannet | Akershus, Norway | 2 | 1 | 0 | 1993-06-08 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1991-10-23 | |
| Hostadvatnet | Møre og Romsdal, Norway | 2 | 1 | 0 | 1990-09-18 | |
| Husavatnet | Vestland, Norway | 1 | 1 | 0 | 1991-09-17 | |
| Imetjønn | Agder, Norway | 1 | 1 | 0 | 1989-10-06 | |
| Inndalsvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1994-05-02 | |
| Jarenvannet | Innlandet, Norway | 1 | 1 | 0 | 1996-09-18 | |
| Kolbotnvannet | Akershus, Norway | 2 | 1 | 0 | 1990-09-25 | |
| Korssjøen | Vestfold, Norway | 2 | 1 | 0 | 1994-09-05 | |
| Kverndammen | Telemark, Norway | 1 | 1 | 0 | 1990-08-30 | |
| Laupen | Innlandet, Norway | 2 | 1 | 0 | 1990-06-01 | |
| Lauvtjønna | Trøndelag, Norway | 2 | 2 | 0 | 1993-06-11 | |
| Lianvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-04 | |
| Litlevatn | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-04-27 | |
| Mosvatnet | Rogaland, Norway | 3 | 1 | 0 | 1993-09-26 | |
| Raudsjøen | Trøndelag, Norway | 2 | 1 | 0 | 1990-08-31 | |
| Reiarsvatnet | Rogaland, Norway | 2 | 1 | 0 | 1991-09-16 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1991-09-17 | |
| Røldalstjørnet | Vestland, Norway | 4 | 2 | 0 | 1993-06-08 | |
| Rørvatnet | Møre og Romsdal, Norway | 4 | 1 | 0 | 1994-09-07 | |
| Seljebøvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1993-06-14 | |
| Skjelbreidvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Spildervatnet | Nordland, Norway | 4 | 2 | 0 | 1994-06-02 | |
| Stavsjø | Innlandet, Norway | 1 | 1 | 0 | 1990-05-28 | |
| Stordammen | Akershus, Norway | 1 | 1 | 0 | 1989-09-08 | |
| Storvannet | Nordland, Norway | 1 | 1 | 0 | 1990-09-07 | |
| Svartaholtjørnet | Vestland, Norway | 7 | 2 | 0 | 1996-09-17 | |
| Svartåstjern | Buskerud, Norway | 2 | 1 | 0 | 1990-09-24 | |
| Tretjønnet | Agder, Norway | 1 | 1 | 0 | 1990-06-26 | |
| Tveitavatnet | Vestland, Norway | 2 | 1 | 0 | 1990-05-20 | |
| Ulfsbakktjønn | Vestfold, Norway | 1 | 1 | 0 | 1996-09-25 | |
| Vasslivatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-10-04 | |
| Årstadtjødne | Rogaland, Norway | 1 | 1 | 0 | 1994-09-22 | |
| Årungen | Akershus, Norway | 2 | 2 | 0 | 1996-09-16 | |