Untra
From Tardis Wiki, the free Doctor Who reference
The Untra were a species genetically engineered to hunt humans from Untralo IV. These hairless purple hunters had two arms, an additional two sets of pincers of the same proportions as the arms, and a long powerful tail. They hunted by scent and collectively in hunting parties, using both spears and laser guns. (COMIC: The Hunters / Cliffhanger)
