The Jax were a legendary race originating from the Cronus system.
Humanoids infected by the Jax virus arrived on Kursaal and built a cathedral on the planet. The humanoids were killed off by wolf-like creatures native to the planet, who became carriers of the Jax virus, turning into werewolf-like humanoids. They went into hibernation until more humanoids landed on the planet. Kursaal became their homeworld and they were worshipped by the other species in the Cronus system, who they eventually transformed into Jax. (PROSE: Kursaal)