Species (sp.): Strandsnegler (Littorina sp.)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Feda | Agder, Norway | 12 | 1 | 0 | 1996-09-26 | |
| Fedje | Vestland, Norway | 3 | 1 | 0 | 1996-10-01 | |
| Ferkingstad | Rogaland, Norway | 7 | 1 | 0 | 1997-09-19 | |
| Fevik | Agder, Norway | 25 | 1 | 0 | 1998-09-07 | |
| Filtvet | Akershus, Norway | 12 | 1 | 0 | 1996-10-30 | |
| Fiskåbygd | Møre og Romsdal, Norway | 6 | 1 | 0 | 1996-10-18 | |
| Flakstad | Nordland, Norway | 5 | 1 | 0 | 1997-10-22 | |
| Florvåg | Vestland, Norway | 10 | 1 | 0 | 1995-10-10 | |
| Flø | Møre og Romsdal, Norway | 10 | 1 | 0 | 1995-09-19 | |
| Flørnes | Agder, Norway | 36 | 1 | 0 | 1998-09-17 | |
| Fosslandsosen | Trøndelag, Norway | 3 | 1 | 0 | 1999-06-09 | |
| Framnes | Vestfold, Norway | 6 | 1 | 0 | 1996-09-25 | |
| Frebergsvika | Vestfold, Norway | 9 | 1 | 0 | 1998-10-13 | |
| Frostvedt | Vestfold, Norway | 5 | 1 | 0 | 1995-09-29 | |
| Furøya | Agder, Norway | 35 | 1 | 0 | 1998-09-24 | |
| Fyllinga-Tivolistranda | Vestfold, Norway | 6 | 1 | 0 | 1998-09-23 | |
| Fyrde | Møre og Romsdal, Norway | 2 | 1 | 0 | 1996-06-11 | |
| Færvik-kilen | Agder, Norway | 10 | 1 | 0 | 1995-09-22 | |
| Gauselstraen | Rogaland, Norway | 2 | 1 | 0 | 1995-10-31 | |
| Geiranger | Møre og Romsdal, Norway | 1 | 1 | 0 | 1996-09-18 | |
| Giske | Møre og Romsdal, Norway | 28 | 1 | 0 | 1997-09-25 | |
| Gjelsvik | Vestland, Norway | 23 | 1 | 0 | 1996-09-19 | |
| Gjeving | Agder, Norway | 18 | 1 | 0 | 1997-10-01 | |
| Gryta | Møre og Romsdal, Norway | 2 | 1 | 0 | 1998-05-05 | |
| Guriskj. | Vestfold, Norway | 27 | 1 | 0 | 1998-10-06 | |
| Haddal | Møre og Romsdal, Norway | 6 | 1 | 0 | 1997-09-26 | |
| Hafrsfjord | Rogaland, Norway | 56 | 1 | 0 | 1998-09-28 | |
| Hagland | Nordland, Norway | 2 | 1 | 0 | 1996-10-03 | |
| Halsnøy | Vestland, Norway | 25 | 1 | 0 | 1996-09-25 | |
| Hansbakkfjæra | Trøndelag, Norway | 9 | 1 | 0 | 2018-05-23 | |
| Hanøy | Vestland, Norway | 4 | 1 | 0 | 1995-10-11 | |
| Haram | Møre og Romsdal, Norway | 4 | 1 | 0 | 1995-10-17 | |
| Harøy | Møre og Romsdal, Norway | 54 | 1 | 0 | 1998-10-30 | |
| Heissa | Møre og Romsdal, Norway | 11 | 1 | 0 | 1995-10-27 | |
| Hellandsjøen | Trøndelag, Norway | 6 | 1 | 0 | 1996-09-06 | |
| Hellestø/Sele | Rogaland, Norway | 2 | 1 | 0 | 1998-10-01 | |
| Herdla | Vestland, Norway | 5 | 1 | 0 | 1995-10-06 | |
| Hetland | Rogaland, Norway | 4 | 1 | 0 | 1996-10-03 | |
| Hetlevik | Vestland, Norway | 10 | 1 | 0 | 1995-10-13 | |
| Hisøy | Agder, Norway | 47 | 1 | 0 | 1997-10-02 | |
| Holmestrand | Vestfold, Norway | 19 | 1 | 0 | 1998-09-18 | |
| Holtefjell | Vestfold, Norway | 40 | 1 | 0 | 1998-09-24 | |
| Horten | Vestfold, Norway | 48 | 1 | 0 | 1998-10-08 | |
| Hundvåg | Rogaland, Norway | 29 | 1 | 0 | 1997-10-14 | |
| Hundvåg | Rogaland, Norway | 37 | 1 | 0 | 1998-10-12 | |
| Hvasser | Vestfold, Norway | 20 | 1 | 0 | 1996-10-10 | |
| Hytteområde i Austefjorden | Vestland, Norway | 1 | 1 | 0 | 2007-08-31 | |
| Håkonshella | Vestland, Norway | 6 | 1 | 4 | 2013-09-12 | |
| Håkvik | Nordland, Norway | 6 | 1 | 0 | 1996-10-09 | |
| Hårkollen | Vestfold, Norway | 69 | 1 | 0 | 1998-09-24 |
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