Bestiary (Oblivion)

Oblivion will feature many types of animals, including:
 * Deer, sheep, and horses
 * Clanfear, daedroth, dremora
 * Goblins, trolls, ogres, and minotaurs
 * Lich, skeleton, zombie, ghost

More information will be revealed when the game is released

From Oblivion Forums