Genus: Halosiphon
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bjellandstrand | Agder, Norway | 1 | 1 | 1 | 2016-06-08 | |
| Jomfruland | Telemark, Norway | 1 | 1 | 1 | 2013-05-08 | |
| Lille Groos | Agder, Norway | 1 | 1 | 1 | 2013-05-13 | |
| Rolfsbukta, Fornebu | Akershus, Norway | 1 | 1 | 0 | 2010-08-25 |
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