Chromodoris willani

Thank you Saarbrigger, and agree on that statement. Coral reefs and other tropical ecosystems seem to have gathered the majority of the funky-looking inverts and vertebrates.

Same here - I think this is my favourite so far of the ones I've seen: http://www.projectnoah.org/spottings/6191029 It's funny, I didn't really see what the fuss was about until I started seeing them more regularly (once you get your eye in I guess) and realised how stunning they are!

I found it at Buoy 3 as far as I recall! I never knew how many different nudi's there were around Hoga until a nudi-fan pointed several out to me this summer :)