Trochidae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bjellandstrand | Agder, Norway | 2 | 2 | 3 | 2016-06-08 | |
| Drøbak | Akershus, Norway | 1 | 1 | 1 | 2014-10-15 | |
| Håkonshella | Vestland, Norway | 2 | 2 | 1 | 2017-09-21 | |
| Håkonshellapollen | Vestland, Norway | 3 | 2 | 1 | 2018-06-06 | |
| Kjerreidviken | Vestland, Norway | 2 | 1 | 2 | 2016-05-10 | |
| Ljøbrekka | Møre og Romsdal, Norway | 1 | 1 | 1 | 2023-09-08 | |
| Skallevold | Vestfold, Norway | 1 | 1 | 0 | 2001-03-21 | |
| Torvangerfjæra | Vestland, Norway | 1 | 1 | 0 | 2002-10-08 |