Found in the muddy areas by the LA river, sometimes in dead barnacles and between polychaetes.
Small specimen under low intertidal rock.
Pacific Colonial Tunicate colony from under the docks just beneath the ice. Introduced invasive species from the distant past.
This orange mass growing on the dock with sponges and tunicates looks like little asterisks, and I wonder if it's a tunicate colony? It's about 3" across, partially hidden by red seaweed at the upper right.
Ascidiacea (commonly known as the ascidians or sea squirts) is a class in the Tunicata subphylum of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer "tunic" made of the polysaccharide tunicin, as compared to other tunicates which are less rigid.