蝮蛇

蝮蛇	fù shé	Siberian pit viper (Gloydius halys) / pit viper
蝮	fù	insect / poisonous snake (archaic)
蛇	shé	variant of 蛇
蛇	shé	snake / serpent / CL:条
蛇	yí	used in 委蛇