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Marine Habitat Classification

Description of biotope or habitat type

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   Maldanid polychaetes and Eudorellopsis deformis in offshore circalittoral sand or muddy sand

Physical habitat description

Salinity Full (30-35 ppt)
Wave exposure
Tidal streams
Substratum Sand and muddy sand.
Zone Circalittoral
Depth Band
Other Features

Download comparative physical and biological data. The comparative tables enable a rapid comparison of the species composition and principal physical characteristics between a given set of biotopes.

Distribution of habitat SS.SSa.OSa.MalEdef Maldanid polychaetes and <I>Eudorellopsis deformis</I> in offshore circalittoral sand or muddy sand

  • Records used to define the biotope (core records)
  • Other records assigned to this biotope, marked as 'certain'
  • Other records assigned to this biotope, marked as 'uncertain'
  • Predicted extent of the level 3 (for sublittoral rock & deep sea) or 4 (for sublittoral sediment) habitat

Point data based on records in the UK Marine Recorder Snapshot. Predicted habitat extent is from UKSeaMap.


In deep offshore sand or non-cohesive muddy sand dense populations of maldanid polychaetes such as Maldane sarsi and the cumacean Eudorellopsis deformis may be found. Accompanying these species are abundant ophiuroids including Amphiura filiformis, polychaetes such as Terebellidae sp., Chaetozone setosa, Levinsenia gracilis, Scoloplos armiger, the amphipod Harpinia antennaria and the bivalves Nuculoma tenuis and Parvicardium minimum. This biotope is similar to the Maldane sarsi-Ophiura sarsi community defined by Glemarec (1973).


No situation data available.

Temporal variation

No temporal data available.

Characterising species

Characterising species data not applicable.

Similar biotopes or habitat types

Not applicable or unknown.

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