The Painted Frogfish is a very unique type of fish indeed. A subspecies of the Frogfish, it is classified as a specific type of anglerfish and can be found in most tropical oceans. (Although it does not reside in the Mediterranean Sea, it can be found off the coasts of Australia, New Zealand, Japan, and South Africa.)
The Frogfish is not streamlined at all; many species resemble rocky lumps, they have no scales and are often very bumpy.
Frogfish come in countless colors and patterns. They are nearly impossible to divide into subspecies, since the color varies even within these small groups. They use their misshapen body and unique color to hide in coral and sand.
They have also been known to change color, but an external force triggers this - they cannot do it at will as a chameleon does. Frogfish feed mainly on crustaceans and smaller fish.
[via Tree of Life]