Klasse: Mangebørstemark (Polychaeta)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Agderkysten | Agder, Norway | 1 | 1 | 1 | 2013-03-20 | |
| Akvastasjonen | Vestland, Norway | 16 | 4 | 0 | 2001-11-26 | |
| Alsvågen | Nordland, Norway | 8 | 1 | 0 | 1994-11-28 | |
| Alteren | Nordland, Norway | 9 | 1 | 0 | 2002-09-27 | |
| Alvestad-Grøtavær | Troms, Norway | 5 | 1 | 0 | 1993-11-16 | |
| Alvøy (Dåvøy-Nyneset) | Vestland, Norway | 1 | 1 | 0 | 1997-10-06 | |
| Arendal | Agder, Norway | 6 | 2 | 6 | 2014-05-07 | |
| Arendal | Agder, Norway | 1 | 1 | 0 | 2013-03-20 | |
| Arendal havneområde | Agder, Norway | 2 | 1 | 0 | 1998-09-26 | |
| Asmaløy | Østfold, Norway | 23 | 1 | 0 | 1996-09-25 | |
| Aureosen | Møre og Romsdal, Norway | 1 | 1 | 0 | 1993-09-24 | |
| Avaldsnes | Rogaland, Norway | 4 | 1 | 0 | 1995-10-20 | |
| Balderheim | Vestland, Norway | 1 | 1 | 0 | 1993-11-08 | |
| Barneskjær | Vestfold, Norway | 2 | 1 | 0 | 1996-09-26 | |
| Bastøy | Vestfold, Norway | 5 | 1 | 0 | 1994-11-11 | |
| Batnfjordsøra | Møre og Romsdal, Norway | 5 | 1 | 0 | 1996-10-14 | |
| Bergerbukta | Buskerud, Norway | 1 | 1 | 0 | 1994-12-09 | |
| Bjellandstrand | Agder, Norway | 2 | 2 | 2 | 2014-05-14 | |
| Bjellandstrand | Agder, Norway | 2 | 1 | 2 | 2015-06-04 | |
| Bjerkvik | Nordland, Norway | 40 | 1 | 0 | 1998-09-29 | |
| Bjoa | Rogaland, Norway | 6 | 1 | 0 | 1996-09-05 | |
| Bjorvika-Melkevika | Vestland, Norway | 3 | 1 | 0 | 1996-09-27 | |
| Bjørnsandfjæra | Nordland, Norway | 3 | 1 | 0 | 1996-09-17 | |
| Blakstadbukta-Vollen | Akershus, Norway | 2 | 1 | 0 | 1994-01-13 | |
| Bleikstranda | Nordland, Norway | 7 | 1 | 0 | 1997-10-22 | |
| Blokknr 1 | Møre og Romsdal, Norway | 1 | 1 | 0 | 1996-09-19 | |
| Blokknr 1 | Trøndelag, Norway | 4 | 1 | 0 | 1996-10-23 | |
| Blokknr 118 | Møre og Romsdal, Norway | 3 | 1 | 0 | 1996-09-20 | |
| Blokknr 118 | Møre og Romsdal, Norway | 9 | 1 | 0 | 1996-09-20 | |
| Blokknr 131 | Møre og Romsdal, Norway | 1 | 1 | 0 | 1996-09-20 | |
| Blokknr 132 | Møre og Romsdal, Norway | 2 | 1 | 0 | 1996-10-18 | |
| Blokknr 2 | Vestfold, Norway | 3 | 1 | 0 | 1996-09-19 | |
| Blokknr 40 | Troms, Norway | 15 | 1 | 0 | 1997-10-09 | |
| Blokknr 71 | Nordland, Norway | 2 | 1 | 0 | 1995-10-19 | |
| Blokknr 95 | Vestfold, Norway | 3 | 1 | 0 | 1997-09-10 | |
| Bodøsjøen | Nordland, Norway | 2 | 1 | 1 | 2018-04-05 | |
| Bogen | Vestfold, Norway | 16 | 1 | 0 | 2001-05-08 | |
| Bogen | Vestfold, Norway | 4 | 1 | 0 | 1995-10-10 | |
| Bota | Vestland, Norway | 1 | 1 | 0 | 2015-09-12 | |
| Botngård | Trøndelag, Norway | 25 | 1 | 0 | 1996-09-18 | |
| Bragdøya | Agder, Norway | 1 | 1 | 0 | 1994-05-27 | |
| Brandal | Møre og Romsdal, Norway | 1 | 1 | 0 | 1996-10-16 | |
| Bredvik | Møre og Romsdal, Norway | 24 | 1 | 0 | 1997-06-11 | |
| Brekke | Vestland, Norway | 2 | 1 | 0 | 1993-09-01 | |
| Bryggevika | Nordland, Norway | 6 | 1 | 0 | 1994-11-28 | |
| Budal | Vestfold, Norway | 6 | 1 | 0 | 1994-11-30 | |
| Buøy | Rogaland, Norway | 1 | 1 | 0 | 1993-09-23 | |
| Bygdøy | Oslo, Norway | 1 | 1 | 0 | 1994-12-20 | |
| Bø - Tunge | Rogaland, Norway | 21 | 1 | 0 | 1996-10-02 | |
| Davika - Fjørtoftsvika | Møre og Romsdal, Norway | 8 | 1 | 0 | 1993-10-29 | |
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