Klasse: Horn- og kiselsvamper (Demospongia)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last 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 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Langavatnet | Vestland, Norway | 1 | 1 | 0 | 1989-08-31 | |
| Storeidvatnet | Nordland, Norway | 2 | 2 | 0 | 1998-09-07 | |
| Torvangerfjæra | Vestland, Norway | 1 | 1 | 0 | 2002-10-08 | |
| Øvre Storfjordvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-09-01 | |