Took this picture of a nudibranch in Anilao. These were very small and I had no idea of what I was taking a picture of at the time. My guild had a pointer that sometimes took me forever to find in the the viewfinder. I follow to the end of the pointer, focus and shoot. A lot. What are these? I shot with a Canon 5D MkIII, 100mm macro, Saga +10 diopter.