Diazona violacea

Diazona violacea is a species of tunicate, an ascidian in the family Diazonidae. It is the type species of the genus Diazona.

Diazona violacea
The Ascidian Diazona violacea, Firth of Lorne, Scotland, 20 m.
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Ascidiacea
Order:
Enterogona
Suborder:
Phlebobranchia
Family:
Diazonidae
Genus:
Diazona
Species:
D. violacea
Binomial name
Diazona violacea

Distribution

This species is known from the northeast Atlantic from the British Isles to Portugal, and in the Mediterranean Sea. In the British Isles it is found off Scotland, Ireland and SW England. It is a cold water species found below 30 m in Plymouth but as shallow as 15 m in Scotland.

Description

This colonial ascidian is translucent grey with transparent zooids. The zooids are marked with white internal lines and circles and there are typically six spots around the exhalant siphon.[2]

References
  1. Savigny, (1816) Mémoires sur les Animaux sans Vertèbres, &c. Paris, 1816
  2. Picton, B.E. & Morrow, C.C. (2015). Diazona violacea Savigny, 1816. [In] Encyclopedia of Marine Life of Britain and Ireland. Accessed on 2015-12-23
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