Qatai's vessel was a spaceship used by Qatai during his efforts to kill the telepathic pitcher plant in the Delta Quadrant.
Qatai was using this vessel when he encountered the USS Voyager in 2375. It was later consumed by the anomaly along with Voyager, but with the help of Seven of Nine and The Doctor, both ships were eventually freed.
After Voyager had left, Qatai completed repairs of his ship and made another attempt on the "creature's" life. (VOY: "Bliss")
Armaments[]

Firing weapons
Qatai's vessel had at least one tetryon-based disruptor bank, located on the forward section of the ship. It was also equipped with shields that could withstand close proximity to an electrolytic reaction. (VOY: "Bliss")
Interior[]
The vessel's cockpit was confined, with just one seat for the pilot, situated in front of the helm console. Directly behind the pilot's chair was the rear hatch, with an extra computer console on the starboard side that controlled the sensors. (VOY: "Bliss")