Genus: Sandskjell (Mya)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Arendal | Agder, Norway | 1 | 1 | 0 | 2013-03-20 | |
| Bekkevika | Vestfold, Norway | 1 | 1 | 0 | 2014-09-16 | |
| Bjellandstrand | Agder, Norway | 1 | 1 | 1 | 2015-06-03 | |
| Bota | Vestland, Norway | 1 | 1 | 0 | 2015-09-12 | |
| Bragdøya | Agder, Norway | 2 | 1 | 0 | 1994-06-09 | |
| Drøbak | Akershus, Norway | 2 | 2 | 0 | 2004-05-04 | |
| Dybdalstrand | Agder, Norway | 1 | 1 | 1 | 2017-09-20 | |
| Dysjalandsvågen | Rogaland, Norway | 1 | 1 | 0 | 2019-08-27 | |
| Eivindvik | Vestland, Norway | 2 | 1 | 2 | 2017-09-27 | |
| Englan | Nordland, Norway | 1 | 1 | 0 | 1996-04-16 | |
| Espegrend | Vestland, Norway | 1 | 1 | 0 | 2001-01-31 | |
| Fjæra på Skjelnan | Troms, Norway | 4 | 2 | 0 | 2007-06-07 | |
| foldnes | Vestland, Norway | 1 | 1 | 0 | 2006-04-21 | |
| Fosslandsosen | Trøndelag, Norway | 3 | 1 | 0 | 1999-06-09 | |
| Furuneset, Rubbestadneset | Vestland, Norway | 1 | 1 | 0 | 2017-09-14 | |
| Grefstadvika | Agder, Norway | 1 | 1 | 1 | 2014-09-04 | |
| Grovfjord | Troms, Norway | 3 | 1 | 2 | 2019-11-04 | |
| Hamn, badeplassen | Vestland, Norway | 2 | 1 | 0 | 2014-05-20 | |
| Hansbakkfjæra | Trøndelag, Norway | 3 | 2 | 0 | 2018-05-24 | |
| Hauknesfjæra | Nordland, Norway | 2 | 2 | 0 | 2016-09-19 | |
| Helgeroafjorden | Vestfold, Norway | 2 | 1 | 0 | 1993-12-08 | |
| Herdla | Vestland, Norway | 1 | 1 | 0 | 2007-05-18 | |
| Holmenskjæret | Akershus, Norway | 4 | 1 | 0 | 2017-09-20 | |
| Hvervenbukta | Oslo, Norway | 1 | 1 | 0 | 2015-09-11 | |
| Hvervenbukta | Oslo, Norway | 1 | 1 | 0 | 2015-09-10 | |
| Håkonshella | Vestland, Norway | 14 | 2 | 9 | 2020-10-01 | |
| håkonshella | Vestland, Norway | 1 | 1 | 0 | 2018-06-07 | |
| Håkonshella | Vestland, Norway | 2 | 1 | 0 | 2020-06-08 | |
| Håkonshellapollen | Vestland, Norway | 9 | 1 | 3 | 2020-06-11 | |
| Jomfruland | Telemark, Norway | 2 | 1 | 2 | 2013-05-13 | |
| Klippfiskberget | Troms, Norway | 1 | 1 | 0 | 2013-05-23 | |
| Kvaløysletta | Troms, Norway | 2 | 1 | 0 | 2019-09-20 | |
| Kårtveitpollen | Vestland, Norway | 1 | 1 | 1 | 2014-09-24 | |
| Landsvik | Vestland, Norway | 1 | 1 | 0 | 2015-10-04 | |
| Langnes | Troms, Norway | 1 | 1 | 0 | 2013-04-17 | |
| Leiknesveien 40 | Troms, Norway | 2 | 1 | 2 | 2018-10-16 | |
| Liland b | Nordland, Norway | 2 | 1 | 0 | 2004-10-05 | |
| Lund-Klungset | Nordland, Norway | 1 | 1 | 1 | 2014-05-29 | |
| Mesxy | Finnmark, Norway | 1 | 1 | 0 | 1994-04-08 | |
| Naustrekka | Vestland, Norway | 1 | 1 | 1 | 2021-06-15 | |
| Nordre Eigerøy | Rogaland, Norway | 3 | 1 | 0 | 1997-06-04 | |
| Ormefjorden | Telemark, Norway | 1 | 1 | 0 | 1994-05-04 | |
| Osen | Nordland, Norway | 1 | 1 | 0 | 2010-05-19 | |
| pollen | Vestland, Norway | 11 | 2 | 2 | 2019-06-13 | |
| Refsnesstranda | Østfold, Norway | 4 | 2 | 2 | 2014-08-28 | |
| Rotvoll/Leangen fjæra | Trøndelag, Norway | 3 | 1 | 3 | 2019-08-23 | |
| Ryum | Trøndelag, Norway | 1 | 1 | 1 | 2020-10-22 | |
| Røvika | Vestfold, Norway | 1 | 1 | 0 | 2004-09-02 | |
| Skattval | Trøndelag, Norway | 1 | 1 | 0 | 2020-06-10 | |
| Skatval | Trøndelag, Norway | 1 | 1 | 1 | 2020-06-10 |