Subclass: Bakgjellesnegler (Opisthobranchia)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2016 | 1 | 1 | 1 | 1 |
| 2015 | 1 | 1 | 1 | 1 |
| 2014 | 1 | 2 | 2 | 2 |
| 2013 | 1 | 1 | 1 | 1 |
| 2012 | 2 | 2 | 2 | 2 |
| 2001 | 3 | 1 | 1 | 15 |
| 2000 | 1 | 1 | 1 | 2 |
| Totalt alle år | 4 | 3 | 3 | 24 |
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Responsible editor: Doris Jorde