I took a photo of a pale turquoise and green sea star; as so often happens, something else showed up when I blew up the photo.
|Starfish, yellow eggs, bryozoan cases, green worm, sponges, tubeworms, more eggs. And ...|
Look up at the left corner, to the right of the green worm. There's a white blob. Look closely; it has spiky, white projections all over.
It could be a nudibranch that I have never seen before. My encyclopedia has three white blob nudibranchs with white projections, all under an inch and a half long. The starfish was about 5 inches across.
So this may be the Nanaimo nudibranch, Acanthodoris nanaimoensis; the Pilose Doris, Acanthodoris pilosa; or, less likely, the Hudson's Dorid, Acanthodoris hudsoni.
Whichever it is, it's a lifer. *Does lifer dance.*