Microcosmus squamiger Michaelsen, 1927  

This species is a simple, solitary ascidian, with a tough leathery outer covering or tunic. The body is ovoid in shape, measures up to 5 cm in length, and attaches to the substrate near its base. Oral siphon is positioned anteriorly; atrial siphon is located midcenter, often projecting at a right angle. Tips of both siphons are conspicuously ringed in alternating white and dark red bands. Internally, the siphons possess distinct, short siphonal spines, with each spine characterized by a rounded, serrated edge. Overall, the tunic is tannish-brown with bright orange or red markings, but often covered with very short hairs and debris.