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Ascidia mentula

Ascidia mentula

Pink sea-squirt

   Ascidia mentula is a solitary ascidian of about 5 to 18 cm in length, occasionnaly up to 30 cm. The test is smooth, cartilaginous and thick and it is generally pink. The body is ovoid and is attached to the substratum by the left side. The oral siphon is broad, terminal, eight-lobed and may have eight white markings. The atrial siphon is one-half of body length from the oral siphon. The pink sea-squirt lives attached to rocks, wrecks or shells. This species has a rather long lifespan, some of them living up to 7 years old.
It is found from 5 m to depths of 200 m in the Atlantic Ocean from Norway to the Mediterranean Sea, in the North Sea and the English Channel.

Classification

 (source : European Register of Marine Species)

  • Chordata [Phylum]
  • Tunicata [Subphylum]
  • Ascidiacea [Class]
  • Enterogona [Order]
  • Phlebobranchia [Suborder]
  • Ascidiidae [Family]
  • Ascidia mentula Müller, 1776

Glossary of the page


Test : or tunic: thick layer secreted by the mantel containing cellulose and protecting the animal.
Oral siphon : Opening by which water is drawn in the ascidian.
Atrial siphon : Opening through which water is expelled.

Ascidia mentula. Ascidia mentula
Young specimen

Ascidia mentula. Ascidia mentula
Close view

Ascidia mentula. Ascidia mentula
Group

Ascidia mentula. Ascidia mentula
Mamillated form.

 
 

Authors


Top photograph :
© Wilfried Bay-Nouailhat. Published with author's kind permission : 
Ascidia mentula, Iles Glénan, South Brittany, West of France. Depth 14 meters.
Bottom photographs : © Wilfried Bay-Nouailhat. Published with author's kind permission : 
Ascidia mentula, Young specimen. Rade de Brest, West Brittany, West of France. Depth 4 meters.
© Wilfried Bay-Nouailhat. Published with author's kind permission : 
Ascidia mentula, Close view. Baie de Lannion, North Brittany, West of France. Depth 10 meters.
© Wilfried Bay-Nouailhat. Published with author's kind permission : 
Ascidia mentula, Group. Anse de Camaret, West Brittany, West of France. Depth 12 meters.
© Wilfried Bay-Nouailhat. Published with author's kind permission : 
Ascidia mentula, Mamillated form.. Rade de Brest, West Brittany, West of France. Depth 8 meters.
Text :  Anne Bay-Nouailhat © 2005-2017.
Translation :  Anne Bay-Nouailhat © 2007-2017.

How to cite this page in publications


Bay-Nouailhat A., September 2005, Description of Ascidia mentula, Available on line at http://www.european-marine-life.org/32/ascidia-mentula.php, consulted on 24 April 2017.
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