| Spanish Slug (Arion vulgaris) | | 164 | 543 | 173 | 2024-05-22 |
| European black slug (Arion ater) | | 68 | 117 | 88 | 2023-05-28 |
| Dusky Arion (Arion fuscus) | | 18 | 22 | 29 | 2021-05-17 |
| Forest arion (Arion silvaticus) | | 10 | 11 | 5 | 2014-05-17 |
| Brun × svartskogsnegl (hybrid) (Arion vulgaris × ater) | | 7 | 9 | 8 | 2018-04-18 |
| Common Garden Slug (Arion distinctus) | | 7 | 7 | 6 | 2015-10-15 |
| Gulflankeskogsnegl (Arion fasciatus) | | 2 | 2 | 5 | 2012-06-05 |
| Hedgehog arion (Arion intermedius) | | 1 | 1 | 1 | 2003-06-24 |
| Arion sp. | | 1 | 1 | 3 | 2012-05-21 |
| European red slug (Arion rufus) | | 1 | 1 | 1 | 2009-08-30 |
Sustain.no is provided by the Norwegian Centre for Science Education