Hai Collection, Lower Volume Radical: Rat (shǔ) Entry: Fen Kangxi Strokes: 17 Page 1527, Entry 27 Comprehensive Rhymes (Guangyun): Pronounced fei (falling tone). Erya: Explaining Animals (Erya: Shishou): Fen-rat. Note: Classic of Mountains and Seas (Shanhaijing) describes the beast as: Its form is like a fen-rat. Comprehensive Rhymes (Guangyun): A type of rat, its sound is like a dog barking.