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Magnus oilfield, North Sea : 300m
M010209


M010207


M010208

Magnus oilfield, North Sea : 300m
M010210

Magnus oilfield, North Sea : 300m
M010211

Magnus oilfield, North Sea
M010212
Acesta excavata (J C Fabricius, 1779)
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NMW Image No.

Acesta excavata (J C Fabricius, 1779)

Limoidea : Limidae
Tebble name: n/a
Smith & Heppell name: Acesta excavata (J C Fabricius, 1779)

To size: To 200mm. Shell Structure: Thin, robust. Equivalve: Equivalve. Equilateral: Inequilateral. Tumidity: Valves moderately convex. Outline: Oval, slightly extended anterio-laterally; posterior curved with prominent posterior ear; dorsal anterior straight with anterior ear lacking; ventral anterior curved; ventral curved. Dorsal margin straight. Dorsal area wide. Valves not gaping or with a narrow byssus gape.

Sculpture: Up to around 100 radiating narrow riblets, these most prominent on the anterior-ventral area and the posterio-dorsal area. Inner margin weakly crenulated in small shell but crenulations fading with growth. Ligament: In a large triangular resilifer on the cardinal area. Hinge: Hinge plate on either side of resilifer smooth. Pallial Musculature: Posterior adductor and pedal retrtactor scar close to the mid posterior margin. Periostracum: Thin, obscure. Colour: Opalescent white becoming dirty white.



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Distribution & Ecology


Along the Atlantic margin associated with deep water coral reefs but also attached to rock faces in fjords.

Depth Range
Continental Margin Zone (200 - 500m)
Bathyal (500 - 2000m)


Juveniles & Similar Species

Juvenile Description

Key Features & Similar Species

Additional Comments

Limoidea : Limidae

References


Listed are literature citing Acesta excavata (J C Fabricius, 1779). Reference containing the species Type Description is highlighted.
Fabricius J C 1779. Reise nach Norwegen mit Bemerkungen aus der Naturhistorie und Oekonomie Hamburg. 388pp.
Lopez Correa M, Freiwald A; Hall-Spencer J & Taviani M 2005. Distribution and habitats of Acesta excavata (Bivalvia: Limidae) with new data on its shell ultrastructure Erlangen Earth Conference Series. Cold-Water Corals and Ecosystems. Springer Berlin Heidelberg. 173-205.

Resources


Downloads

Weblinks

  • Conchological Society of Great Britain & Ireland
    Provides resources for understanding, identifying, recording, and conserving molluscs
  • CLEMAM
    Check List of European Marine Mollusca
  • MarLIN
    The Marine Life Information Network for Britain and Ireland (MarLIN) provides information for marine environmental management, protection and education. It is a centre of excellence in spatially based and time-series marine biological information and supports good stewardship in the marine environment.
  • NBN Gateway
    National Biodiversity Network's Gateway. Use it to explore UK biodiversity data, as contributed by participating data providers.
  • BivAToL
  • MarBEF
  • Malacological Society
  • Unitas Malacologica
  • Census of Marine Life
  • MarBEF
    MarBEF, a network of excellence funded by the European Union and consisting of 94 European marine institutes, is a platform to integrate and disseminate knowledge and expertise on marine biodiversity, with links to researchers, industry, stakeholders and the general public.

Record last modified - 15/01/2014