Balloon-like Predator

An unnamed species of floating balloon-like predators inhabit a Jupiter-sized gas giant in a star system close to the Milky Way's galactic center.

Biology
They are giant predators kept aloft by hydrogen-filled bladders. Their mouths are located at the end of a long appendage, and capture small flying worms that are then digested externally.

Appearances

 * Cosmic Safari (1999)