Trochidae
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Sandgotna skole | Vestland, Norway | 3 | 2 | 1 | 2018-06-06 |
| Sandnes skole | Agder, Norway | 2 | 2 | 3 | 2016-06-08 |
| Bjørndalsskogen skole | Vestland, Norway | 2 | 1 | 2 | 2016-05-10 |
| Mathopen skole | Vestland, Norway | 2 | 2 | 1 | 2017-09-21 |
| Oslo katedralskole | Oslo, Norway | 1 | 1 | 1 | 2014-10-15 |
| Stryn vidaregåande skule | Vestland, Norway | 1 | 1 | 1 | 2023-09-08 |
| Hauge skule | Vestland, Norway | 1 | 1 | 0 | 2002-10-08 |
| Trintom skole | Innlandet, Norway | 1 | 1 | 0 | 2001-03-21 |