Kunkun Pinyin: die radical: fish strokes: 18 Pronunciation: T m, stroke order 352512112515415465438. ◎ Explain the name "sole" in detail. The flatfish family has a small mouth, the nose and mouth protrude more or less out of the mouth, and the ventral fins contract or degenerate, as do the pectoral fins and caudal fins. The branchial foramen is very small, and the two small eyes are located very close. This family includes some of the most delicious fish (such as Solea produced in Europe), but some species are too small to have economic value.