Slarums

The Slarums is a species native to the Center of the Earth, near the Domed City of the Volti. The Volti had considered them barbarians for half a million years, and used a dome to protect their city so as to keep them from entering, but the only reason that they attack was because their force field had deprived them of their farmland.

Appearance
Super Friends
 * Lost Episode: Day of the Dinosaurs