Family: Halichondriidae
| Område | Kommune (fylke) | Ant. obs. | Ant. arter | Ant. bilder | Siste obs. | |
|---|---|---|---|---|---|---|
| Drøbak | Akershus, Norway | 2 | 1 | 2 | 2014-04-22 | |
| Elingaardskilen | Østfold, Norway | 1 | 1 | 0 | 1994-09-29 | |
| Englan | Nordland, Norway | 1 | 1 | 0 | 1994-11-09 | |
| Foldnes | Vestland, Norway | 1 | 1 | 0 | 2006-04-21 | |
| Halten | Trøndelag, Norway | 1 | 1 | 0 | 1994-06-03 | |
| Jomfruland | Telemark, Norway | 1 | 1 | 1 | 2013-05-14 | |
| Torvangerfjæra | Vestland, Norway | 1 | 1 | 0 | 2002-10-08 |