Species: Stylodrilus heringianus
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Botnavatnet | Rogaland, Norway | 1 | 1 | 0 | 1991-09-10 | |
| Buvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1990-05-29 | |
| Eidsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1990-09-12 | |
| Eikedokktjernet | Buskerud, Norway | 1 | 1 | 0 | 1990-06-06 | |
| Fetvatnet | Møre og Romsdal, Norway | 2 | 1 | 0 | 1990-09-18 | |
| Harestuvannet | Akershus, Norway | 1 | 1 | 0 | 1991-09-13 | |
| Laksådalsvatnet | Nordland, Norway | 1 | 1 | 0 | 1992-06-02 | |
| Laupen | Innlandet, Norway | 1 | 1 | 0 | 1992-09-30 | |
| Longvatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-06-01 | |
| Lundarvatnet | Vestland, Norway | 1 | 1 | 0 | 1993-05-13 | |
| Rossevatn | Rogaland, Norway | 2 | 1 | 0 | 1991-05-27 | |
| Seljebøvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1991-06-14 | |
| Skjelbreidvatnet | Vestland, Norway | 1 | 1 | 0 | 1990-09-18 | |
| Spildervatnet | Nordland, Norway | 3 | 1 | 0 | 1993-06-10 | |
| Storvannet | Nordland, Norway | 1 | 1 | 0 | 1990-09-07 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1990-05-29 | |