Appearance
The atrial siphons are located at the upper third of the side of the body and possess six lobes. The body is covered by a firm transparent test that is greyish to brown in color. The test often snag detritus that remain loosely attached to the animal. When expanded, at most 40 tentacles can be observed on the inside surface of the branchial wall. Both the openings of the branchial and atrial siphons possess lighter colored ridges on their rims. They may also be frilled at times. "A. aspersa" are attached to the substrates by the left side of their bodies. They can be found in dense groups of unfused individuals on hard surfaces like rocks. at depths of up to 90 m.Naming
"Ascidiella aspersa" closely resemble "Ciona intestinalis", but can be distinguished by their lack of yellow markings around their siphons.References:
Some text fragments are auto parsed from Wikipedia.
