The planet Pabu's oceans were home to bioluminescent rays known as luminescent green rays. These green creatures possessed flat, disc-shaped bodies accompanied by a slender tail.
In approximately 18 BBY, the Force-sensitive Asajj Ventress piloted a Pabu skiff with the clone Omega on Pabu's waters to assess her m-count. When Omega was unsuccessful in connecting with the surrounding life using the Force, Ventress displayed her ability by calling forth a group of luminescent green rays, which then circled their skiff. Omega observed the creatures with wonder until Ventress ceased her actions, causing the rays to quickly disperse as a predatory vrathean emerged, its mouth covered in the luminous green remains of a recent meal.
The nineth episode of Star Wars: The Bad Batch's third season, "The Harbinger," which debuted on March 27, 2024, featured luminescent green rays. While their name wasn't mentioned during the episode, it was revealed in the audio description.