Phylum: Chordata

Subphylum: Tunicata

Class: Ascidiacea

Order: Aplousobranchia

Family: Didemnidae

Scientific name: Diplosoma listerianum

 

Norwegian: -

(Stord - Hordaland / 4 meters / 2.18.2004)

Distribution: Along the Norwegian coast it is usually seen between Vest-Agder and Sogn, but has been observed as far north as Troms. It can be found on any smooth surface. It is often seen on seaweeds.

Characteristics: This ascidian forms thin (1-2 mm) gelatinous sheets. The small zooids (animals) are densely scattered throughout the sheet. The colony is semitransparent. There is a pattern of yellow pigmented spots in the surface layer.

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