Body length 22 cm; body back of the brown color, usually ventral to chestnut red, and sometimes even the inside of the limbs were tested Li-hong; some individuals have only a red belly line, or even without the red. Tail almost as long as the body, tail tip light brown hair dark brown, and some individuals have a white tail. 体长约22公分；体背面棕褐色,一般腹面为栗红色,有时连四肢内侧都呈栗红；有些个体却仅有红色腹中线,甚至完全不带红色.尾巴差不多与身体一样长,尾毛黑褐先端淡棕色,有些个体具有灰白色尾端.
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