About six individuals on submerged pipe.
Sample collected for microscopic examination of spicules.
On large rock wall, just under the surface at a 1 foot tide.
On dock. Group was about 2" across.
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.