Adegan eels were serpent-like beings that naturally occurred on Ossus. This planet, Ossus, resided within the Adega system, which explains their designation.
These creatures were a delicacy consumed by the royal family of Empress Teta. The Krath leaders employed the eels as part of their strategy to seize control of the Empress Teta system.
During the Cold War, Nokril presented Adegan eels as an offering to Nem'ro the Hutt in an attempt to acquire spice. Getzo, a spice merchant seeking to purchase Nem'ro's spice, contracted someone to sabotage Nokril's eel holding facilities.