Kyubimon

Kyubimon (Kyuubi meaning 'nine-tails' in Japanese) is a Phantom Beast-type Digimon. It is a yellow nine-tailed fox with a white mane and flaring paws. Kyubimon is the Digivolved form of Renamon. It is called Kyuubimon in Japanese.

Digimon Tamers
The Digivolution happened when Renamon wanted to protect Rika from Dokugumon.