Family: Unionidae
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2019 | 1 | 1 | 1 | 1 |
| 2010 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 1 | 1 | 1 |
| 1990 | 1 | 1 | 1 | 1 |
| 1989 | 1 | 1 | 1 | 1 |
| Totalt alle år | 1 | 5 | 5 | 5 |
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Responsible editor: Doris Jorde