The homeworld of the Teenaxi, where Captain Kirk made an unsuccessful attempt in 2263 to broker peace with the Fibonan Republic by presenting an ancient artefact as a gift.
Teenax appears in the opening scene of Star Trek Beyond. Three years into the Enterprise's five-year mission, Kirk stands before the Teenaxi assembly as a neutral envoy, offering a fragment of an old weapon on behalf of their long-standing enemies, the Fibonans.
The Teenaxi distrust the gesture, deciding that the Fibonans must have stolen the piece or no longer want it. They swarm the captain, and only then does it become clear that they are no bigger than small dogs. Kirk is beamed out with his uniform torn and one of the creatures still clinging to him.
The rejected gift is logged in the ship's archive and proves to be part of the Abronath, the device Krall later hunts.