Star Ascidian

Latin name: Botryllus schlosseri

Description: Star ascidians occur in colonies, either forming flat, sheet like colonies, or thick, erect, fleshy lobes. They can show a variety of colours, such as blue, purple, yellow and brown. The zooids are arranged in star shape groups, sized from 2-4 mm, each with a central cloacal opening.

Habitat: Star ascidians are found within the lower regions of intertidal rocky shorelines, sublittoral habitats, attached to brown algae and artificial substrates. It is usually found within moderately exposed environments.

Status: Widespread throughout UK and Channel Islands.