Genus: Ciona
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Akvastasjonen | Vestland, Norway | 9 | 1 | 0 | 2001-02-16 | |
| Arendal | Agder, Norway | 1 | 1 | 1 | 2013-03-20 | |
| Drøbak | Akershus, Norway | 5 | 1 | 2 | 2014-10-15 | |
| Espegrend | Vestland, Norway | 6 | 1 | 0 | 2001-01-24 | |
| Håkonshella | Vestland, Norway | 1 | 1 | 1 | 2018-05-24 | |
| Håkonshellapollen | Vestland, Norway | 1 | 1 | 1 | 2020-06-09 |
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