Dragon

Dragons are reptilian creatures that could fly and breathe fire; they could be found on Dragon Island. When Edmund Pevensie first entered into the courtyard of the White Witch's Castle, he saw what he thought was a dragon turned to stone. Eustace Scrubb, while on Dragon Island, after watching a dragon die spent a night in a dragon cave and tried on a piece of Dragon gold; when he awoke, he had discovered that he had turned into a dragon himself. This event changed Eustace's life, and Aslan soon turned him back into a human.

In The Silver Chair, Dragons along with Salamanders were in the Underground of the Earthmen where they were sleeping when Eustace, Jill, and Puddleglum were on their way to see the Lady of the Green Kirtle.

At the end of Narnia, the Dragons aided in the destruction of the world by tearing up all of the trees before growing old and dying, their flesh rotting away leaving behind only the skeletons. However several Dragons were loyal to Aslan and the Old Narnians.

Trivia
After King Gale delivered the Lone Islands from a dragon, he was made Emperor by the island's grateful inhabitants. It was only after this that all subsequent kings of narnia were also referred to as "Emperor of the Lone Islands"