Classification: Space Worm Demigod
Description: Space worms that try to eat your spaceship are bad. Space worms that try to decimate your entire planet and free a host of dark monster gods from their cosmic prison are far worse. Behold the Conqueror Worm, one of the 369 Ogdru Hem, the children of the Ogdru Jahad, the so-called "dragon of revelation" destined to destroy the world. The worm entity hitched a ride to earth on a returning Nazi space capsule and attempted to cleanse the planet for its dark fathers. Lucky for us, someone stopped it.
Further Study: "Hellboy, Vol. 5: Conqueror Worm" by Mike Mignola