UNID Sea fan

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Raja Empat, Papua, Indonesia

Fuji S2 12-24mm @ 14, 1/125 @ f/8

I have no idea what this beatiful sea fan happens to be. There's nothing quite like it in any of my ID books.

Raja Empat has the highest diversity of corals in the world, harboring more than 75% of all known species, and many that are unknown.

The curly greenish thing in the lower part of the frame is Sarcophyton sp., and there are a half dozen other types of corals visible here.