Klasse: Chiton (Polyplacophora)
| Område | Kommune (fylke) | Ant. obs. | Ant. arter | Ant. bilder | Siste obs. | |
|---|
| Agderkysten | Agder, Norway | 1 | 1 | 1 | 2013-03-20 | |
| Agderkysten | Agder, Norway | 1 | 1 | 1 | 2013-03-20 | |
| Arendal | Agder, Norway | 1 | 1 | 1 | 2013-03-20 | |
| Arendal | Agder, Norway | 1 | 1 | 0 | 2013-03-20 | |
| Bragdøya | Agder, Norway | 1 | 1 | 0 | 1994-06-09 | |
| Drøbak | Akershus, Norway | 1 | 1 | 0 | 2004-05-04 | |
| Drøbak | Akershus, Norway | 4 | 1 | 1 | 2014-10-15 | |
| Elingaardskilen | Østfold, Norway | 1 | 1 | 0 | 1994-09-29 | |
| Espegrend | Vestland, Norway | 1 | 1 | 0 | 2012-05-08 | |
| Foldnes | Vestland, Norway | 1 | 1 | 0 | 2006-04-21 | |
| Helgeroafjorden | Vestfold, Norway | 3 | 1 | 0 | 1993-12-08 | |
| Håkonshella | Vestland, Norway | 1 | 1 | 0 | 2013-05-16 | |
| Håkonshella | Vestland, Norway | 2 | 1 | 0 | 2020-06-11 | |
| Håkonshellapollen | Vestland, Norway | 1 | 1 | 1 | 2016-06-08 | |
| Langnes | Troms, Norway | 1 | 1 | 1 | 2013-04-17 | |
| Mjølvik | Troms, Norway | 1 | 1 | 1 | 2014-08-28 | |
| Mjølvik Hardbunn | Troms, Norway | 2 | 1 | 3 | 2014-08-28 | |
| Ormefjorden | Telemark, Norway | 1 | 1 | 0 | 1994-05-04 | |
| V. Måsane | Akershus, Norway | 5 | 1 | 0 | 1996-08-21 | |
| Valen | Vestland, Norway | 1 | 1 | 1 | 2014-06-05 | |
| Vestre Åmøy | Rogaland, Norway | 1 | 1 | 0 | 1993-10-11 | |