Critokians were a species of two-meter-tall, arachnoid sentients from the planet Critoki, although many dwelt in tribes on the moon Yavin 4. They used large claws to hunt prey on the jungle world, and several of their number eventually departed Yavin 4 and found work as bounty hunters. The Critokians' biological makeup featured a complex nervous system and six holes though which they could both communicate and breathe.