The tiāngoǔ (Wade-Giles:T'ien kou; 天狗; "celestial dog") is a legendary creature from China.
Chinese literature assigns this creature a variety of descriptions, but most often it is a fierce and anthropophagous canine monster that resembles a shooting star or comet. The tiangou makes a noise like thunder and brings war wherever it falls. One account from the Shù Yì Jì (述異記, "A Collection of Bizarre Stories"), written in 1791, describes a dog-like tiangou with a sharp beak and an upright posture, but usually tiangou bear little resemblance to their Japanese counterparts. However, it is admitted that it gave its name to the tengu of Japan.
Source
de Visser, M. W. (1908). "The Tengu". Transactions of the Asiatic Society of Japan 34 (2): pp. 25-99. Z. P. Maruya & Co..