Panther

Panthers are fast, intelligent animals in the world of Narnia. They are described as being black coloured, and are very loyal to Aslan.

Panthers were among the animals that were sung into existence, and chased Andrew Ketterley, after Aslan created Narnia.

Some panthers fought in the Battle of Anvard against the Calormenes, when Narnia was defending their allies in Archenland. They proved valuable in the battle, as they scared the Calormene soldier's horses, causing them to fall off.

Film
In the 2008 film, Prince Caspian, many panthers were seen with the Old Narnians, who became loyal to Caspian X. They took part in the Telmarine Castle Night Raid, and fought in the Second Battle of Beruna against the Telmarine army.

Trivia

 * A black panther is typically a melanistic colour variant of any of several species of larger cat. (black Jaguars, black Leopards, or possibly the very rare black tigers, or black cougars).