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One of the 16 yōkai depicted in the Tosa Obake Zōshi, drawn during the Edo period
The Bakotsu (馬骨, lit. 'horse bone') is one of the 16 yōkai depicted in the Tosa Obake Zōshi, drawn during the Edo period; it appears as a skeletal, flaming horse, claimed to be the spirit of a horse that perished in a fire.