In the country of Lin(林氏國), there lived a rare beast. It was as big as a tiger, with a colorful body and a tail longer than its body. The beast was named Zouwu(騶虞), and riding it could allow one to travel a thousand miles in a day.
林氏國有珍獸,大若虎,五采畢具,尾長於身,名曰騶虞(騶吾),乘之日行千裏。
《山海經 海內北經》