云斑又称褐首鲶，隶属鲶形目，团科，与斑点叉尾烟统称美国，由湖北水产研究所于1984年引自美国。一、形态特征云斑鲍鱼体粗而短；体表光滑无鳞；前部宽肥，后部略侧扁；背鳍后有一小脂鳍；体色黄褐色，腹部白色；口亚下位；尾鳍截形略内凹不开叉；有触须4对；胸鳍硬刺内线有锯 Cloud catfish, also known as brown catfish, attached to the catfish head, Division Branch, and the spot fork smoke collectively known as the United States, by the Hubei Institute of Fisheries in 1984 from the United States. First, the morphological characteristics Abalone abalone body thick and short; body surface smooth and scales; front wide fat, the rear slightly flat; dorsal fin after a small fat fins; body color brown, abdominal white; mouth sub-inferior; caudal fin truncated Slightly concave not open fork; 4 pairs of tentacles; pectoral fins inside a saw