卷口鱼​ juàn kǒu yú

卷口鱼（Ptychidio jordani）属鲤形目，鲤科，野鲮亚科，卷口鱼属。俗称：嘉鱼，老鼠鱼，鼠头鱼。英文名：Ratmouth barbel 。属于定居性鱼类，生活于河床宽阔、流速大、江中多深潭、水质清澈的石底深水河段以及通泉水的石洞中。最大个体2市斤以上，肉味鲜美，含脂量多

百度翻译提供：

Ptychidio Jordan belongs to Cypriniformes, Cyprinidae, dace subfamily and Cyprinidae. Commonly known as: Jiayu, mouse fish, mouse head fish. English Name: ratmouth barbel. It is a kind of sedentary fish and lives in the deep-water river section with wide riverbed, large flow velocity, many deep pools in the river, clear water and stone caves with spring water. The largest individual is more than 2 kg, with delicious meat and high fat content