Thraxians

The Thraxians are a chitin-covered, multi-armed xenos species that was annexed to the T'au Empire during its First Sphere Expansion.

They were discovered by the Imperium of Man when they drifted into human territory for unknown reasons.

After being discovered by the T'au Air Caste, the Water Caste extended them honourable greetings and invitations to join the T'au Empire, to ally themselves through the appeal of mutual protection, trade and technology. Under the Ethereals' guidance, they were absorbed into their commonwealth.