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Diplosoma spongiforme (Giard, 1872)

Jelly-synascidian

Diplosoma spongiforme

Glénan Archipelago, France, 5 meters, 2011, WBN

Diplosoma spongiforme

Glénan Archipelago, France, 6 meters, 2011, WBN

Diplosoma spongiforme

Glénan Archipelago, France, 6 meters, 2011, WBN

Diplosoma spongiforme

Camaret, France, 6 meters, 2011, WBN

Description

Diplosoma spongiforme is an encrusting colonial ascidian which can cover rock surfaces of 20 to 30 cm in diameter. Several colonies can join together and can thus cover a surface of several square meters. Zooids are immersed in a common gelatinous test. Its thickness is irregular, up to 6 mm , giving to its surface an embossed aspect. The oral siphons of the zooids constitute tiny openings densely distributed all other the colony. Several zooids are gathered around a common, broad and slightly prominent atrial siphon, forming a system. Several systems occur in the colony making it resemble a sponge. The jelly-synascidian has a white translucent test with greenish or yellowish mottlings. The margin of the siphons may be white or bluish.

Distribution

Diplosoma spongiforme is present from surface to 40 m deep in the Atlantic Ocean, the English channel, the North Sea and the Mediterranean Sea.

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

Données de distribution : Diplosoma spongiforme (Giard, 1872) 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)
Aplousobranchia (Order)
Didemnidae (Family)
Diplosoma (Genus)
Diplosoma spongiforme (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.

Atrial siphon : opening through which water is expelled.

Authors

Text : © 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 : Diplosoma spongiforme (Giard, 1872) 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

In writing, November 2005, Description of Diplosoma spongiforme, [On line] http://european-marine-life.org/32/diplosoma-spongiforme.php, consulted on 2020 September 29.

Author

Photographie de Mer et littoral

Mer et littoral

Association for the protection and discovery of the marine environment

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