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Halocynthia papillosa (Linnaeus, 1767)

Red sea squirt

Halocynthia papillosa

Illes Medes, Spain, 15 meters, 2004, WBN

Halocynthia papillosa

Illes Medes, Spain, 18 meters, 2005, WBN

Halocynthia papillosa

Illes Medes, Spain, 18 meters, 2011, WBN

Description

Halocynthia papillosa is a solitary ascidian which is generally 10 cm high but may reach 20 cm. The body is ovoïd, the red test is cartilaginous, rough with a granulous surface. The siphons are distant: the oral siphon is terminal and the atrial siphon is half-way down the body. Rigid bristles, used as sensitive elements, surround the siphons. The red sea-squirt can contract and close its siphons when disturbed. It lives attached to rocks, overhangs or among Posidonia, avoiding luminous areas, between 2 and 100 meters deep.

Distribution

Halocynthia papillosa is a Mediterranean species that may live in the surrounded Atlantic Ocean, particularly along the Portuguese coasts.

Image satellite: © Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community.

Données de distribution : Halocynthia papillosa (Linnaeus, 1767) in GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2020-09-29.

Classification

Source : World Register of Marine Species


Biota (Superdomain)
Animalia (Kingdom)
Chordata (Phylum)
Tunicata (Subphylum)
Ascidiacea (Class)
Stolidobranchia (Order)
Pyuridae (Family)
Halocynthia (Genus)
Halocynthia papillosa (Species)

Page glossary

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.

Authors

Text : Anne Bay-Nouailhat © 2005 - 2020.

Photos : © Wilfried Bay-Nouailhat. Published with his kind permission.
Websites and reference works : Consult bibliography

Image satellite: © Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community.

Données de distribution : Halocynthia papillosa (Linnaeus, 1767) in GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2020-09-29.

How to cite this page

Bay-Nouailhat A., January 2005, Description of Halocynthia papillosa, [On line] http://european-marine-life.org/32/halocynthia-papillosa.php, consulted on 2020 September 29.

Author

Photographie de Anne Bay-Nouailhat

Anne Bay-Nouailhat

Project manager in marine environment
Professional diver - Naturalist

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