Family: Acrosiphonaceae
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bjellandstrand | Agder, Norway | 2 | 1 | 1 | 2015-06-03 | |
| Fjæra på Skjelnan | Troms, Norway | 14 | 3 | 0 | 2009-06-11 | |
| Holmavike | Rogaland, Norway | 1 | 1 | 0 | 2000-06-16 | |
| Hundvåg | Rogaland, Norway | 1 | 1 | 0 | 1999-10-18 | |
| Sageneset | Vestland, Norway | 3 | 1 | 0 | 2003-09-15 | |
| Sæbø | Møre og Romsdal, Norway | 2 | 1 | 0 | 2001-09-12 |
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