The Gilgoblins are a species of aquatic goblin, of which art was shown at BlizzCon 2009. The gilgoblin race is to be introduced with World of Warcraft: Cataclysm.
It is currently unknown whether they are a naturally recurring subrace or a freak mutation resulting from the goblins' Alchemy and Engineering experiments.
Gilgoblins have fins on ends of their arms, with webbed hands and feet almost certainly for swimming. Their hair resembles seaweed and their ears are practically fins.
In the World of Warcraft the gilgoblins are lead by King Gurboggle, whom is friendly to both the Horde and Alliance. His cousin Gilblingle however seeks the throne and commands his own group known as the Gilblins.