IUCN threat status:

Not evaluated

Comprehensive Description

Read full entry

Description

A large colonial ascidian, forming globular colonies. Smaller colonies are spherical, larger ones squat, with a small basal attachment. The test is transparent, with a greenish tinge when out of water. The zooids are large, with white markings similar to Clavelina lepadiformis. This marking consists of a white line along the endostyle, dorsal lamina and around the top of the branchial sac, and six small white spots around the atrial siphon. 50-400mm diameter colonies. Only Clavelina lepadiformis has similarly marked zooids, but that species does not have a massive common test, the zooids are only joined at their bases. Diazona is larger and the six small white spots around the atrial siphon are diagnostic.

Trusted

Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

Belongs to 1 community

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!