Gargoyloid

The Gargoyloids are a mysterious species of winged humanoids which can fly through the vacuum of space and are known to inhabit rogue planets.

Biology
Gargoyloids are bipedal creatures with membranous bat-like wings. They have large glossy black eyes and a single horn on their heads. They communicate in high-pitched bird-like sounds.

Culture and society
Gargoyloids sacrifice victims to their god by dropping them in a pool of molten lava.

Appearances

 * Space Ghost & Dino Boy, s01e18, "The Gargoyloids" (1967)