Hamlet

Fish - Marine

Hamlet is a tropical fish native to the Western Central Atlantic, including southern Florida, the Florida Keys, the Bahamas and the Arrecife Alacranes of Mexico. It is not found outside of this region. The fish is an iridescent blue color with thin dark borders along its tail. It is typically a shy species, preferring to hide among rock work or hover near the substrate.

http://en.wikipedia.org/wiki/Blue_Hamlet