EUNIS habitat type hierarchical view (marine version 2022 & terrestrial version 2021)
The EUNIS habitat classification review is on-going. Four groups are pending review: Inland waters, Wetlands, Constructed, industrial and other artificial habitats and Complexes.-
M : Marine benthic habitats (MA-MG)
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MH : Pelagic water column
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MJ : Ice-associated marine habitats
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N : Coastal habitats
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R : Grasslands and lands dominated by forbs, mosses or lichens
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S : Heathland, scrub and tundra
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T : Forest and other wooded land
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U : Inland habitats with no or little soil and mostly with sparse vegetation
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U1 : Terrestrial underground caves, cave systems, passages and waterbodies
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U11 : Cave
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U111 : Troglobiont vertebrate caves
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U1111 : Proteus anguinus caves
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U1112 : Troglobiont fish caves
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![Troglophile invertebrate caves](images/img_bullet.gif)
![Subtroglophile invertebrate caves](images/img_bullet.gif)
![Caves without vertebrates or invertebrates](images/img_bullet.gif)
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![Disused underground mines and tunnels](images/img_bullet.gif)
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![Boreal calcareous cliff communities](images/img_bullet.gif)
![Boreal and arctic bare limestone inland cliffs](images/img_bullet.gif)
![Boreal and arctic disused chalk and limestone quarries](images/img_bullet.gif)
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![Temperate serpentine and basaltic cliff communities](images/img_bullet.gif)
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![Macaronesian inland cliff](images/img_bullet.gif)
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![Limestone pavement](images/img_bullet.gif)
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