Derriphan were creatures that were created from the Dark side of the Force.
The name origin actually comes from an ancient Sith word that meant "devourer." This was due to the fact that the creatures were capable of consuming the thoughts and experiences of living beings, leaving nothing behind but an empty shell. To accomplish this, the beast had to enter the body of the creature in order to feed. Once inside, the Derriphan took possession of the individual as they leeched off their essence.
The Derriphan were said to appear as miniature black stars that were rolling with energy.
The Derriphan were believed to have gone extinct during the time of the Great Sith War, but it was later revealed that several survived and continued to exist during the time of the Galactic Civil War. One such Derriphan, Ziakas, lurked in the Glow Dome, a nightclub on Adarlon.