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Hemimycale columella

Hemimycale columella

Crater sponge

   Hemimycale columella is an encrusting sponge of 10 to 30 cm in diameter and up to more than 1 cm thick. It has an irregular form varying in colour from pink to pale orange. The surface is covered with irregularly circular craters, containing the inhaling openings. The crater edges are underlined by a clear margin. It lives attached to rocks sometimes in close contact with algae or benthic animals.
It is recorded in the Atlantic Ocean, the English Channel and the Mediterranean Sea.

Close species :

 Anchinoe fictitius has also a surface covered with circular craters but their edges are not underlined by a paler margin and they are more regularly placed.The colour of A. fictitius is red, pink or yellowish-grey.

Classification

 (source: European Register of Marine Species)

  • Porifera [Phylum]
  • Demospongiae [Class]
  • Poecilosclerida [Order]
  • Hymedesmiidae [Family]
  • Hemimycale columella (Bowerbank, 1866)

Page glossary


Inhaling pore : = Ostioles. Holes through which water enters the sponge.
Benthic animals : Animals living on the bottom, attached or not, opposed to pelagic animals that is to say free-swimming animals.

Hemimycale columella. Hemimycale columella
In its habitat.

 
 

Authors


Top photograph :
© Wilfried Bay-Nouailhat. Published with author's kind permission : 
Hemimycale columella, Baie de Concarneau, South-Brittany, West of France. Depth 4 meters.
Bottom photograph : © Wilfried Bay-Nouailhat. Published with author's kind permission : 
Hemimycale columella, In its habitat.. Iles Glénan, South-Brittany, West of France. Depth 10 meters.
Text :  Wilfried Bay-Nouailhat © 2004-2017.
Translation :  Anne Bay-Nouailhat © 2007-2017.

How to cite this page in publications


Bay-Nouailhat W., April 2004, Description of Hemimycale columella, Available on line at http://www.european-marine-life.org/02/hemimycale-columella.php, consulted on 28 April 2017.
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