Phylum: Echinoderms (Echinodermata)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Haramsøy | Møre og Romsdal, Norway | 9 | 2 | 0 | 1994-11-04 | |
| Harøy | Møre og Romsdal, Norway | 25 | 4 | 0 | 1998-10-30 | |
| Hauknesfjæra | Nordland, Norway | 8 | 3 | 0 | 2016-09-19 | |
| Heissa | Møre og Romsdal, Norway | 4 | 2 | 0 | 1995-10-27 | |
| Helgeroafjorden | Vestfold, Norway | 12 | 3 | 0 | 1993-12-08 | |
| Hellandsjøen | Trøndelag, Norway | 13 | 4 | 0 | 1996-09-06 | |
| Hellestø/Sele | Rogaland, Norway | 1 | 1 | 0 | 1998-10-01 | |
| Helleøya | Agder, Norway | 5 | 1 | 0 | 1993-10-21 | |
| Herdla | Vestland, Norway | 30 | 4 | 0 | 1995-10-06 | |
| Hestneset | Nordland, Norway | 2 | 1 | 0 | 2003-06-03 | |
| Hestvika | Trøndelag, Norway | 18 | 2 | 0 | 1995-01-02 | |
| Hestøya | Troms, Norway | 5 | 1 | 0 | 2016-02-17 | |
| Hetland | Rogaland, Norway | 16 | 4 | 0 | 1996-10-03 | |
| Hetlevik | Vestland, Norway | 31 | 4 | 0 | 1995-10-13 | |
| Hetlevikstraumen | Vestland, Norway | 12 | 3 | 0 | 2022-09-28 | |
| Hisøy | Agder, Norway | 38 | 4 | 0 | 1997-10-02 | |
| Hjørungavåg | Møre og Romsdal, Norway | 2 | 1 | 0 | 1993-11-08 | |
| Hodne/Reve (Bore) | Rogaland, Norway | 1 | 1 | 0 | 1993-09-01 | |
| Hofles | Trøndelag, Norway | 4 | 2 | 0 | 1994-10-04 | |
| Holm | Nordland, Norway | 5 | 2 | 0 | 1994-11-29 | |
| Holmavegen 2 | Rogaland, Norway | 1 | 1 | 0 | 2018-06-05 | |
| Holmenskjæret | Akershus, Norway | 6 | 2 | 0 | 2017-09-20 | |
| Holmestrand | Vestfold, Norway | 3 | 2 | 0 | 1993-09-03 | |
| Holmestrand | Vestfold, Norway | 33 | 4 | 0 | 1998-09-18 | |
| Holmfjord | Finnmark, Norway | 3 | 3 | 0 | 2012-10-02 | |
| Holtefjell | Vestfold, Norway | 49 | 3 | 0 | 1998-09-24 | |
| Hommelvik bukta | Trøndelag, Norway | 1 | 1 | 0 | 2008-04-18 | |
| Horten | Vestfold, Norway | 83 | 4 | 0 | 1998-10-08 | |
| Hosteland | Vestland, Norway | 4 | 2 | 0 | 1994-09-01 | |
| Hovedøya | Oslo, Norway | 5 | 1 | 0 | 1996-10-16 | |
| Hundvåg | Rogaland, Norway | 52 | 4 | 0 | 1997-10-14 | |
| Hundvåg | Rogaland, Norway | 48 | 4 | 0 | 2000-12-07 | |
| Hvasser | Vestfold, Norway | 11 | 2 | 0 | 1994-11-30 | |
| Hvasser | Vestfold, Norway | 33 | 4 | 0 | 1996-10-10 | |
| Hvervenbukta | Oslo, Norway | 1 | 1 | 0 | 2015-09-11 | |
| Hvervenbukta | Oslo, Norway | 1 | 1 | 0 | 2015-09-10 | |
| Hvervenbukta | Oslo, Norway | 5 | 2 | 0 | 2015-09-10 | |
| Håkjerringberget | Troms, Norway | 4 | 3 | 0 | 2015-07-09 | |
| Håkonshella | Vestland, Norway | 26 | 6 | 8 | 2020-06-12 | |
| håkonshella | Vestland, Norway | 16 | 6 | 5 | 2020-06-11 | |
| Håkonshella | Vestland, Norway | 93 | 12 | 58 | 2020-10-01 | |
| Håkonshella - Pollen | Vestland, Norway | 3 | 3 | 3 | 2015-06-09 | |
| Håkonshellapollen | Vestland, Norway | 144 | 10 | 49 | 2020-06-12 | |
| Håkvik | Nordland, Norway | 13 | 4 | 0 | 1996-10-09 | |
| Hårkollen | Vestfold, Norway | 86 | 4 | 0 | 1998-09-24 | |
| Håøya | Agder, Norway | 6 | 1 | 0 | 1994-11-04 | |
| Ilene | Vestfold, Norway | 23 | 3 | 0 | 1997-09-18 | |
| Ilsvåg | Rogaland, Norway | 3 | 1 | 0 | 1994-11-28 | |
| Inderøy | Nordland, Norway | 2 | 2 | 0 | 1994-11-28 | |
| Indre Lafjord | Agder, Norway | 50 | 3 | 0 | 1995-09-27 | |
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