Species: Tangdokke (Polysiphonia fibrillosa)
| Område | Kommune (fylke) | Ant. obs. | Ant. arter | Ant. bilder | Siste obs. | |
|---|---|---|---|---|---|---|
| Arendal | Agder, Norway | 3 | 1 | 3 | 2014-05-14 | |
| Bjellandstrand | Agder, Norway | 1 | 1 | 1 | 2014-05-14 | |
| Bjellandstrand | Agder, Norway | 1 | 1 | 1 | 2014-05-14 | |
| Bjellandstrand | Agder, Norway | 1 | 1 | 1 | 2014-05-14 | |
| Bjellandstrand | Agder, Norway | 2 | 1 | 2 | 2014-05-14 | |
| Bjellandstrand | Agder, Norway | 5 | 1 | 5 | 2016-06-08 | |
| Dybdalstrand | Agder, Norway | 3 | 1 | 3 | 2017-09-20 | |
| Espegrend | Vestland, Norway | 1 | 1 | 0 | 2001-01-24 |