Draconitas

"No use of a growl, a whoop, a roar, in the presence of that beast! Vast, red-golden, huge tail coiled, limbs sprawled over his treasure-hoard, eyes not firey but cold as the memory of family deaths. Vanishing away across invisible floors, there were things of gold, gems, jewels, silver vessels the color of blood in the undulant, dragon-red light. Arching over him the ceiling and upper walls of his cave were alive with bats. The color of his sharp scales darkened and brightened as the dragon inhaled and exhaled slowly, drawing new air across his vast internal furnace; his razor-sharp tusks gleamed and glinted as if they too, like the mountains beneath him, were formed of precious stones and metals." --from Grendel, by John Gardner.