Klasse: Mangebørstemark (Polychaeta)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Meløy | Nordland, Norway | 10 | 1 | 0 | 1995-09-14 | |
| Mesxy | Finnmark, Norway | 1 | 1 | 0 | 1994-04-08 | |
| Midsund | Møre og Romsdal, Norway | 8 | 1 | 0 | 1996-09-20 | |
| Mjølvik | Troms, Norway | 1 | 1 | 1 | 2014-08-28 | |
| Mjølvik Hardbunn | Troms, Norway | 1 | 1 | 2 | 2014-08-28 | |
| Mjølvik, bløtbunn | Troms, Norway | 4 | 1 | 4 | 2014-08-29 | |
| Monstad | Trøndelag, Norway | 4 | 1 | 0 | 1994-12-05 | |
| Munkerekka | Vestfold, Norway | 31 | 1 | 0 | 2001-05-21 | |
| Myklebost | Møre og Romsdal, Norway | 3 | 1 | 0 | 1993-09-24 | |
| Mærdø | Agder, Norway | 4 | 1 | 0 | 1993-11-11 | |
| Møllebukta, Hafrsfjord | Rogaland, Norway | 3 | 1 | 0 | 1996-10-08 | |
| Mørkvedbukta, Fjæra | Nordland, Norway | 3 | 2 | 1 | 2014-10-09 | |
| Narvik | Nordland, Norway | 34 | 1 | 0 | 1998-11-24 | |
| Nattholmen | Vestfold, Norway | 13 | 1 | 0 | 1998-09-17 | |
| Naverfjorden | Vestfold, Norway | 9 | 1 | 0 | 2000-09-26 | |
| Nordbø | Rogaland, Norway | 1 | 1 | 0 | 1997-10-13 | |
| Nordnesøy | Nordland, Norway | 9 | 1 | 0 | 1997-10-09 | |
| Nordre Eigerøy | Rogaland, Norway | 1 | 1 | 0 | 1996-10-01 | |
| Nær Vartdal skule | Møre og Romsdal, Norway | 3 | 1 | 0 | 1994-10-03 | |
| Nærbø | Rogaland, Norway | 14 | 1 | 0 | 1998-10-02 | |
| Nærsnes | Akershus, Norway | 1 | 1 | 0 | 1993-12-07 | |
| Oddane sand/Smørbukta | Vestfold, Norway | 20 | 1 | 0 | 1996-09-24 | |
| Oksvoll | Trøndelag, Norway | 21 | 1 | 0 | 2001-10-19 | |
| Ormefjorden | Telemark, Norway | 2 | 1 | 0 | 1994-05-09 | |
| Ormelet | Vestfold, Norway | 6 | 1 | 0 | 1994-11-09 | |
| Orvika | Møre og Romsdal, Norway | 7 | 1 | 0 | 2001-05-29 | |
| Osen | Nordland, Norway | 1 | 1 | 0 | 2010-05-19 | |
| Ottersøy | Trøndelag, Norway | 3 | 1 | 0 | 1995-01-02 | |
| pollen | Vestland, Norway | 1 | 1 | 1 | 2018-06-07 | |
| Pusnes/Tybakken | Agder, Norway | 21 | 1 | 0 | 2005-09-22 | |
| Ranvik | Vestfold, Norway | 10 | 1 | 0 | 1996-09-24 | |
| Ravnøy | Vestfold, Norway | 7 | 1 | 0 | 1995-09-19 | |
| Ringshaug | Vestfold, Norway | 11 | 1 | 0 | 1996-09-25 | |
| Risør | Agder, Norway | 1 | 1 | 0 | 2013-03-20 | |
| Risør til Hisøya | Agder, Norway | 1 | 1 | 1 | 2013-03-20 | |
| Rognstranda | Telemark, Norway | 1 | 1 | 0 | 1993-09-27 | |
| Rolfsbukta, Fornebu | Akershus, Norway | 1 | 1 | 0 | 2010-08-25 | |
| Rosfjorden | Agder, Norway | 3 | 1 | 0 | 1995-11-01 | |
| Rotvoll/Leangen fjæra | Trøndelag, Norway | 2 | 2 | 2 | 2019-08-23 | |
| Rotvollfjæra | Trøndelag, Norway | 2 | 2 | 0 | 2017-09-01 | |
| Rypefjord | Finnmark, Norway | 1 | 1 | 0 | 1993-11-12 | |
| Ryum | Trøndelag, Norway | 1 | 1 | 1 | 2020-10-29 | |
| Rødskjær | Vestfold, Norway | 28 | 1 | 0 | 2006-09-07 | |
| Rømmen/Lysøysundet | Trøndelag, Norway | 2 | 1 | 0 | 1993-11-19 | |
| Røvika | Vestfold, Norway | 22 | 1 | 0 | 2008-09-11 | |
| Sageneset | Vestland, Norway | 8 | 1 | 0 | 2003-09-15 | |
| Sagesund-Falkøya | Agder, Norway | 1 | 1 | 0 | 1995-09-19 | |
| Samfundets skole Egersund | Rogaland, Norway | 1 | 1 | 0 | 2019-10-01 | |
| Sand-Mulvika | Vestfold, Norway | 11 | 1 | 0 | 2001-09-18 | |
| Sandeid | Rogaland, Norway | 8 | 1 | 0 | 1996-10-08 |
Sustain.no is provided by the Norwegian Centre for Science Education