Hai Collection, Lower Volume Radical: Mouse (shǔ) Kangxi Strokes: 23 Page 1529, Entry 22 Pronounced xi. According to the Shuo Wen Jiezi (Shuowen), it is a small mouse. According to the Yu Pian, it has a poisonous sting; when it bites humans, birds, or beasts, there is no pain. It is the modern-day sweet-mouthed mouse. According to the Erya: Shishou, it is the xi mouse. The commentary states it is the one that has a poisonous sting. According to the Bowuzhi, the xi mouse is the smallest of all mice, sometimes referred to as the ear mouse. According to the Spring and Autumn Annals (Chunqiu), in the spring of the seventh year of Duke Cheng, a xi mouse ate the horn of the sacrificial ox; the ox was replaced, but the xi mouse ate its horn as well. According to the Bencao Commentary, Li Xun stated it is the jingqu, sometimes referred to as the sweet mouse. Chen Cangqi stated that the xi mouse is extremely minute and often invisible; it eats the skin of humans, cows, and horses, causing sores that lead to death without the victim noticing.