#radiolarian colony - couldn't mark it due to glitch when the subject is so large. And is that a larvacean house left of center above it?
You can move the axis marking after you've marked the species. Very handy for huge things like this. And yes, a very faint house, good eyes!
by yshish moderator, translator
Yes, exactly as Quia said. And there is a little #shrimp in an escape posture (top left) as well.