Gug

"It was a paw, fully two feet and a half across, and equipped with formidable talons. After it came another paw, and after that a great black-furred arm to which both of the paws were attached by short forearms. Then two pink eyes shone, and the head of the awakened gug sentry, large as a barrel, wabbled into view. The eyes jutted two inches from each side, shaded by bony protuberances overgrown with coarse hairs. But the head was chiefly terrible because of the mouth. That mouth had great yellow fangs and ran from the top to the bottom of the head, opening vertically instead of horizontally."

- H.P. Lovecraft, The Dream-Quest of Unknown Kadath

In the Dreamlands, untouched by those awake, lies the underground realm of the Great Gugs. Hair-covered, inhuman giants, the Gugs are 20 feet tall, have 30-inc wide paws savagely taloned, vertical-opening mouths full of impaling teeth, and 2 forelimbs on each arm (extra forelimbs sometimes hidden under the coarse hairs), these creatures where condemned to live below by the great ones due to a sin perhaps eons old. These creatures are carnivorous yet sentient, building circles of great boulder's which they carry considerable distances to preform magical religious acts, perhaps similar to the shamans of Earth's awake world but connected somehow to the maddening perplexities of the Cthulhu Mythos. Terrible creatures none ever want to witness, they are the nightmares of nightmares!