The Bronis were a spacefaring species from Bronis II and members of the Dominion.

The Bronis were a non-humanoid species, seemingly somewhat snake-like, with one individual described as having mottled grey flesh, a wide flat head, a thin slit for a mouth and two dark eyes that functioned independently of each other. She was described as being low to the ground when moving (which was accomplished with an up and down sinuous motion) but capable of drawing herself up to balance on the end of her body, which separated into four small segments at the tip. Their language consisted of hissing and whistles. (ST - Typhon Pact novel: Raise the Dawn)

In 2383, rogue Romulan and Breen forces travelled into the Gamma Quadrant, where they appropriated Bronis starship manufacturing technology as part of their plans to manufacture quantum slipstream technology. Odo and Weyoun were informed of the event by Venetheris. (ST - Typhon Pact novel: Raise the Dawn)

In 2386, several Bronis boarded a Jem'Hadar battle cruiser with more than three thousand other individuals aboard, all intent on starting new lives in the Alpha Quadrant. (DS9 novel: The Long Mirage)

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