长吻鱼危（Leiocasislongirostris），属鲇形目、鱼危科，鱼危属，俗称“肥沱”，是我国特有名贵鱼类。该鱼肉味鲜嫩腴美，膘特别肥厚，加工所成“笔架鱼肚”是宴席上的美味佳肴，市场价格很高。长吻鱼危在广东、四川、湖北等省已形成养殖规模。我所１９９９年进行人工繁殖和育 Leiocasislongirostris is a typical Chinese rare and famous fish. The fish is tender and beautiful, especially fat, processed into “penholder” is a delicacy on the feast, the market price is high. Long-legged fish danger in Guangdong, Sichuan, Hubei and other provinces have formed a breeding scale. I conducted artificial breeding and breeding in 1999