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Aplidium punctum (Giard, 1873)

Orange flake-ascidian

Aplidium punctum

Pointe de Trévignon, France, 8 meters, 2014, WBN

Aplidium punctum

Glénan Archipelago, France, 7 meters, 2011, WBN

Aplidium punctum

Glénan Archipelago, France, 8 meters, 2011, WBN

Aplidium punctum

Concarneau Bay, France, 4 meters, 2011, WBN

Aplidium punctum

Ria d’Etel, France, 11 meters, 2011, WBN

Description

Aplidium punctum is a colonial ascidian forming capitate colonies reaching 6 cm in height. Up to forty zooids are embedded in a common test forming a flat-topped lobe arising from a stalk. The base of the colony is often encrusted with sand. The test is transluscent and the general colour of the colony is pale orange. Each zooid has a six-lobed oral siphon and a red spot at the upper-end of the endostyle. Colonies of orange flake-ascidians often live aggregated, forming bunches attached to rocks from low water level to 25 meters deep.

Distribution

Aplidium punctum is found in the North-East Atlantic and the English Channel.

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

Données de distribution : Aplidium punctum (Giard, 1873) in GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2020-09-25.

Classification

Source : World Register of Marine Species


Biota (Superdomain)
Animalia (Kingdom)
Chordata (Phylum)
Tunicata (Subphylum)
Ascidiacea (Class)
Aplousobranchia (Order)
Polyclinidae (Family)
Aplidium (Genus)
Aplidium punctum (Species)

Page glossary

Zooid : individual, single animal.

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.

Endostyle : groove through which food particles are moved up to the oesophagus.

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 : Aplidium punctum (Giard, 1873) in GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2020-09-25.

How to cite this page

Bay-Nouailhat A., March 2005, Description of Aplidium punctum, [On line] http://european-marine-life.org/32/aplidium-punctum.php, consulted on 2020 September 25.

Author

Photographie de Anne Bay-Nouailhat

Anne Bay-Nouailhat

Project manager in marine environment
Professional diver - Naturalist

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