Species: O-skjell (Modiolus modiolus)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Bygdøy | Oslo, Norway | 3 | 1 | 0 | 1995-10-30 | |
| Bygdøy | Oslo, Norway | 11 | 1 | 0 | 1996-10-21 | |
| Bø - Tunge | Rogaland, Norway | 17 | 1 | 0 | 1996-10-02 | |
| Davanger | Vestland, Norway | 1 | 1 | 0 | 1994-11-30 | |
| Davika - Fjørtoftsvika | Møre og Romsdal, Norway | 8 | 1 | 0 | 1993-10-29 | |
| Dimna | Møre og Romsdal, Norway | 6 | 1 | 0 | 1994-11-04 | |
| Dirhue | Vestfold, Norway | 14 | 1 | 0 | 1996-09-20 | |
| Draget-Kvitnes | Møre og Romsdal, Norway | 6 | 1 | 0 | 1994-12-01 | |
| Drøbak | Akershus, Norway | 4 | 1 | 0 | 1994-11-04 | |
| Drøbak | Akershus, Norway | 5 | 1 | 2 | 2016-09-23 | |
| Dvergsnestangen Ø | Agder, Norway | 1 | 1 | 0 | 1993-10-05 | |
| Dyrnes | Møre og Romsdal, Norway | 10 | 1 | 0 | 1996-09-20 | |
| Dysjaland | Rogaland, Norway | 8 | 1 | 0 | 1996-09-24 | |
| Eggesbønes | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-11-04 | |
| Eide | Møre og Romsdal, Norway | 10 | 1 | 0 | 1997-09-30 | |
| Eidsbukta | Agder, Norway | 1 | 1 | 0 | 2021-08-20 | |
| Einarsneset | Agder, Norway | 3 | 1 | 0 | 1994-06-27 | |
| Englan | Nordland, Norway | 2 | 1 | 0 | 1996-04-16 | |
| Erdal | Vestland, Norway | 21 | 1 | 0 | 1995-10-10 | |
| Espegrend | Vestland, Norway | 2 | 1 | 0 | 2001-06-11 | |
| Eydehavn | Agder, Norway | 7 | 1 | 0 | 1995-09-20 | |
| Feda | Agder, Norway | 7 | 1 | 0 | 1997-09-24 | |
| Fedje | Vestland, Norway | 5 | 1 | 0 | 1994-12-01 | |
| Fevik | Agder, Norway | 25 | 1 | 0 | 1998-09-07 | |
| Figga-Sørlia-Frøset | Trøndelag, Norway | 4 | 1 | 0 | 1995-01-02 | |
| Filtvet | Akershus, Norway | 7 | 1 | 0 | 1996-10-30 | |
| Fiskåbygd | Møre og Romsdal, Norway | 3 | 1 | 0 | 1993-09-22 | |
| Flakstad | Nordland, Norway | 2 | 1 | 0 | 1997-10-22 | |
| Flatøy | Vestland, Norway | 1 | 1 | 0 | 2017-09-28 | |
| Florvåg | Vestland, Norway | 10 | 1 | 0 | 1995-10-10 | |
| Flørnes | Agder, Norway | 30 | 1 | 0 | 2001-10-08 | |
| foldnes | Vestland, Norway | 1 | 1 | 0 | 2006-04-21 | |
| Framnes | Vestfold, Norway | 1 | 1 | 0 | 1993-10-12 | |
| Frebergsvika | Vestfold, Norway | 6 | 1 | 0 | 1998-10-16 | |
| Frostvedt | Vestfold, Norway | 2 | 1 | 0 | 1995-09-29 | |
| Furulunden | Agder, Norway | 6 | 1 | 0 | 1993-10-15 | |
| Furøya | Agder, Norway | 11 | 1 | 0 | 1997-09-11 | |
| Fyllinga-Tivolistranda | Vestfold, Norway | 5 | 1 | 0 | 1998-09-23 | |
| Fyrde | Møre og Romsdal, Norway | 2 | 1 | 0 | 1996-06-11 | |
| Færvik-kilen | Agder, Norway | 9 | 1 | 0 | 1995-09-22 | |
| Førdesfjorden | Rogaland, Norway | 13 | 1 | 0 | 1994-11-28 | |
| Gandsfjorden | Rogaland, Norway | 1 | 1 | 0 | 1993-10-25 | |
| Gauselstraen | Rogaland, Norway | 4 | 1 | 0 | 1995-10-31 | |
| Giske | Møre og Romsdal, Norway | 2 | 1 | 0 | 1997-09-25 | |
| Gjelsvik | Vestland, Norway | 30 | 1 | 0 | 1996-09-19 | |
| Gjeving | Agder, Norway | 2 | 1 | 0 | 1996-10-15 | |
| Gottejord | Troms, Norway | 8 | 1 | 0 | 1993-10-26 | |
| Gressvik | Østfold, Norway | 2 | 1 | 0 | 1993-10-21 | |
| Grovfjord | Troms, Norway | 25 | 1 | 0 | 2004-09-30 | |
| Gryta | Møre og Romsdal, Norway | 1 | 1 | 0 | 1998-05-05 | |
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