Phylosian swoopers

Description
Phylosian swoopers were flying animals native to the planet Phylos. Contrary to their appearance, these creatures were actually plant-based life forms that lived underground and guarded the caverns occupied by the native Phylosians.

On Stardate 5554.4, the crew of the USS Enterprise came to Phylos to investigate a seemingly abandoned city. After meeting the Phylosians, the landing party explored the underground area and were attacked by the swoopers. Ensign Sulu tried firing a phaser at one of the creatures, but the Phylosian leader, Agmar, warned them that their master, Stavos Keniclius 5, had a weapons deactivator in effect rendering their armaments useless. The landing party were forced to flee from the swoopers, but unfortunately, Mister Spock was left behind. ( The Infinite Vulcan)