Family: Tårnsnegler (Turritellidae)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2019 | 1 | 1 | 1 | 1 |
| 2014 | 1 | 1 | 1 | 1 |
| 2010 | 2 | 3 | 2 | 3 |
| 2007 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 1 | 1 | 3 |
| 1993 | 1 | 2 | 2 | 2 |
| Totalt alle år | 2 | 9 | 8 | 11 |
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Responsible editor: Doris Jorde