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Echinocardium cordatum

Echinocardium cordatum

Small heart urchin

   Echinocardium cordatum is a sea urchin that may reach 9 cm in length. The thin test is globular, slightly oval and its upper face is flattened. It is densely covered by yellowish short thin spines. As it lives buried in sand or mud, this type of spines creates a ventilated space between sand and its tegument preventing asphyxiation. It can bury 10 cm deep in sand where it feeds on various micro-organisms.
It is found from 5 m to 200 m deep, in the Atlantic Ocean from Norway to South-Africa, in the English channel, the North Sea and the Mediterranean Sea.

Classification:

 Phylum Echinodermata, class Echinoidea, order Spatangoida, family Loveniidae, Echinocardium cordatum (Pennant, 1777).

Classification

 (source : European Register of Marine Species)

  • Echinodermata [Phylum]
  • Echinozoa [Subphylum]
  • Echinoidea [Class]
  • Euechinoidea [Subclass]
  • Atelostomata [Superorder]
  • Spatangoida [Order]
  • Loveniidae [Family]
  • Echinocardium cordatum (Pennant, 1777)

Page glossary


Test : Rigid skeleton of sea urchins.

Authors


Top photograph :
© Wilfried Bay-Nouailhat. Published with author's kind permission : 
Echinocardium cordatum, Baie de Concarneau, South-Brittany, West of France. Depth 5 meters.
Text :  Anne Bay-Nouailhat © 2005-2017.
Translation :  Anne Bay-Nouailhat © 2007-2017.

How to cite this page in publications


Bay-Nouailhat A., December 2005, Description of Echinocardium cordatum, Available on line at http://www.european-marine-life.org/30/echinocardium-cordatum.php, consulted on 25 March 2017.
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