EUNIS habitat classification 2017 > M - Marine benthic habitats > MD3 - Offshore circalittoral coarse sediment > MD32 - Atlantic offshore circalittoral coarse sediment > MD321 - Faunal communities in Atlantic offshore circalittoral coarse sediment > MD3211 - Glycera lapidum, Thyasira spp. and Amythasides macroglossus in offshore circalittoral gravelly sand

Glycera lapidum, Thyasira spp. and Amythasides macroglossus in offshore circalittoral gravelly sand

Description (English)

Offshore (deep) circalittoral habitats with coarse sands and gravel, stone or shell and occasionally a little silt (<5%) may be characterised by the polychaetes Glycera lapidum and Amythasides macroglossus with the bivalve Thyasira spp. (particularly Thyasira succisa). Other taxa include polychaetes such as Exogone verugera, Notomastus latericeus, Spiophanes kroyeri, Aphelochaeta marioni (Tharyx marioni) and Lumbrineris gracilis and occasional numbers of the bivalve Timoclea ovata. This biotope bears some resemblance to the shallow MB3-235 and also to the circalittoral and offshore venerid biotopes (units MC3-212 and MD4-211) but differs by the range of polychaete and bivalve fauna present. This biotope is notable for the presence of the rarely recorded ampharetid polychaete Amythasides macroglossus and also for the small ear file clam Limatula subauriculata which is common in some examples of this biotope.

Source: EUNIS habitat classification

Quick facts

EUNIS habitat type code MD3211

Vegetation types

Relation to vegetation types (syntaxa)

Not available

Species mentioned in habitat description

Invertebrates Amythasides macroglossus
Invertebrates Exogone verugera
Invertebrates Glycera lapidum
Invertebrates Limatula subauriculata
Invertebrates Lumbrineris gracilis
Species scientific name English common name Species group
Amythasides macroglossus Invertebrates
Exogone verugera Invertebrates
Glycera lapidum Invertebrates
Limatula subauriculata Invertebrates
Lumbrineris gracilis Invertebrates

Other classifications

Classification Code Habitat type name Relationship type
EUNIS Habitat Classification 2007 (revised descriptions 2012) A5.151 Glycera lapidum, Thyasira spp. and Amythasides macroglossus in offshore gravelly sand same
For relation to plant communities (syntaxa), see Vegetation types

History

Classification Code Habitat type name Relationship type Comment
EUNIS Habitat Classification 200410 A5.141 Glycera lapidum, Thyasira spp. and Amythasides macroglossus in offshore gravelly sand same
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