These two intertwined individuals show some of the variations in plume color. Their tubes are overgrown with Perophora annectens tunicates, and a Triopha catalinae clown nudibranch is crawling among them.
This dorsal view of the head shows the groove for fecal material, which runs on the dorsal side at the anterior end (thorax) of the animal. The white flecks are material which has already moved up the groove. A few white flecks can be seen in the groove, and these are moving steadily toward the head. The long notosetae are visible, the head flaps can be clearly seen at the base of the radioles, and dark eyespots can be seen on the shaft of at least one radiole.
This view of the left side of the thorax shows the long notosetae and the short neurosetae, plus the reversal of these on the abdomen at the bottom of the photo.
This dorsal view of the abdomen (left) and thorax (right) shows the transition in type of setae, and also shows the fecal groove transitioning from the ventral side on the abdomen to the dorsal side on the thorax.
