Another Hawaiian mystery fish

[alaity47]

My sister-in-law took this picture snorkeling in Hawaii, and asked if I could help identify it. With such a distinctive tail, I thought it would be a breeze to identify, but I haven't been able to find it in any of my books. I'm banking on the fact that someone out there has a more comprehensive library of Hawaiian fish identification texts!

So... anyone have a clue what this thing is?

 

[raviepoo]

It's an Orangespine Unicornfish. They're pretty common. It might be hard for you to find a photo in a book that looks just like it because your picture was taken at a funky angle.

 

[alaity47]

Whew... thank you. That was actually keeping me up at night!

-Anastasia