Turritella communis
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Gimle videregående skole | Agder, Norway | 3 | 1 | 0 | 1994-05-27 |
| Jæren folkehøgskule | Rogaland, Norway | 1 | 1 | 0 | 1993-10-11 |
| Croftholmen videregående skole | Telemark, Norway | 1 | 1 | 0 | 1993-12-08 |
| Hoppern skole | Østfold, Norway | 1 | 1 | 0 | 2014-08-27 |
| Ortun skole | Vestland, Norway | 1 | 1 | 0 | 2010-09-22 |
| Cato Tandberg | Oslo, Norway | 1 | 1 | 0 | 2010-08-25 |