Scorpaenidae, the scorpionfish, are a family of mostly marine fish that includes many of the world`s most venomous species. As the name suggests, scorpionfish have a type of `sting` in the form of sharp spines coated with venomous mucus. The family is a large one, with hundreds of members. They are widespread in tropical and temperate seas, but...... Found on http://en.wikipedia.org/wiki/Scorpaenidae