Species (sp.): Knivskjell (Ensis sp.)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| "Høyskolen" ved Årstadtjørn | Rogaland, Norway | 1 | 1 | 0 | 2015-09-21 | |
| Alvøy (Dåvøy-Nyneset) | Vestland, Norway | 4 | 1 | 0 | 1997-10-06 | |
| Arendal | Agder, Norway | 1 | 1 | 0 | 2013-03-20 | |
| Arendal havneområde | Agder, Norway | 1 | 1 | 0 | 1995-11-13 | |
| Asmaløy | Østfold, Norway | 3 | 1 | 0 | 1995-09-20 | |
| Avaldsnes | Rogaland, Norway | 4 | 1 | 0 | 1995-10-20 | |
| Barneskjær | Vestfold, Norway | 2 | 1 | 0 | 1996-09-26 | |
| Bekkevika | Vestfold, Norway | 2 | 1 | 0 | 2014-09-16 | |
| Bjerkvik | Nordland, Norway | 6 | 1 | 0 | 1998-09-29 | |
| Bjoa | Rogaland, Norway | 1 | 1 | 0 | 1996-09-05 | |
| Bjørnsandfjæra | Nordland, Norway | 1 | 1 | 0 | 1996-09-17 | |
| Blokknr 1 | Trøndelag, Norway | 3 | 1 | 0 | 1996-10-23 | |
| Blokknr 1 | Møre og Romsdal, Norway | 1 | 1 | 0 | 1996-09-19 | |
| Blokknr 118 | Møre og Romsdal, Norway | 3 | 1 | 0 | 1995-09-18 | |
| Blokknr 132 | Møre og Romsdal, Norway | 1 | 1 | 0 | 1996-10-18 | |
| Blokknr 2 | Vestfold, Norway | 5 | 1 | 0 | 1996-09-19 | |
| Blokknr 34 | Vestland, Norway | 2 | 1 | 0 | 1995-10-13 | |
| Blokknr 40 | Troms, Norway | 16 | 1 | 0 | 1997-10-09 | |
| Blokknr 54 | Møre og Romsdal, Norway | 1 | 1 | 0 | 1997-10-01 | |
| Blokknr 71 | Nordland, Norway | 7 | 1 | 0 | 1995-10-19 | |
| Blokknr 95 | Vestfold, Norway | 1 | 1 | 0 | 1997-09-10 | |
| Bogen | Vestfold, Norway | 20 | 1 | 0 | 1998-09-22 | |
| Botngård | Trøndelag, Norway | 6 | 1 | 0 | 1996-09-18 | |
| Bø - Tunge | Rogaland, Norway | 1 | 1 | 0 | 1996-10-02 | |
| Dirhue | Vestfold, Norway | 8 | 1 | 0 | 1996-09-20 | |
| Drøbak | Akershus, Norway | 1 | 1 | 0 | 2004-05-04 | |
| Dyrnes | Møre og Romsdal, Norway | 2 | 1 | 0 | 1995-09-18 | |
| Eide | Møre og Romsdal, Norway | 4 | 1 | 0 | 1997-09-30 | |
| Englan | Nordland, Norway | 5 | 1 | 0 | 1997-04-11 | |
| Erdal | Vestland, Norway | 1 | 1 | 0 | 1995-10-10 | |
| Espegrend | Vestland, Norway | 1 | 1 | 1 | 2014-04-07 | |
| Eydehavn | Agder, Norway | 6 | 1 | 0 | 1995-09-20 | |
| Feda | Agder, Norway | 1 | 1 | 0 | 1996-09-26 | |
| Ferkingstad | Rogaland, Norway | 2 | 1 | 0 | 1996-09-26 | |
| Filtvet | Akershus, Norway | 4 | 1 | 0 | 1996-10-30 | |
| Fiskåbygd | Møre og Romsdal, Norway | 2 | 1 | 0 | 1996-10-18 | |
| Flørnes | Agder, Norway | 14 | 1 | 0 | 1998-09-17 | |
| Framnes | Vestfold, Norway | 2 | 1 | 0 | 1996-09-25 | |
| Frebergsvika | Vestfold, Norway | 3 | 1 | 0 | 1996-10-15 | |
| Furøya | Agder, Norway | 6 | 1 | 0 | 1998-09-24 | |
| Fyllinga-Tivolistranda | Vestfold, Norway | 3 | 1 | 0 | 1998-09-23 | |
| Færvik-kilen | Agder, Norway | 4 | 1 | 0 | 1995-09-22 | |
| Gauselstraen | Rogaland, Norway | 1 | 1 | 0 | 1995-10-31 | |
| Gjelsvik | Vestland, Norway | 1 | 1 | 0 | 1996-09-19 | |
| Gjeving | Agder, Norway | 3 | 1 | 0 | 1997-10-01 | |
| Gryta | Møre og Romsdal, Norway | 1 | 1 | 0 | 1998-05-05 | |
| Guriskj. | Vestfold, Norway | 16 | 1 | 0 | 1998-10-06 | |
| Haddal | Møre og Romsdal, Norway | 3 | 1 | 0 | 1997-09-26 | |
| Hafrsfjord | Rogaland, Norway | 14 | 1 | 0 | 1998-09-28 | |
| Hagland | Nordland, Norway | 2 | 1 | 0 | 1996-10-03 |