大口鲶，Silurus soldatovi meridionalis Chen，属鲶形目、鲶科、鲶属的一种鱼类。地方名：六须鲶、河鲶华、叉口鲶、鲶巴朗、大口鲶、大河鲶、大鲶鲐等 外形与鲶相似，两者的区别是大口鲶鱼口裂末端达到或超过眼中部的下方。上颌须达到胸鳍基部。胸鳍刺前缘具2～3排颗粒状突起。尾鳍不对称，上叶比下叶长。
结果表明，作为一种肉食性鱼类，黄鳝的消化能力较南方大口鲶、长吻鱼危弱。
The results showed that the digestive ability of swamp eel, a carnivorous fish, was lower than that of southern catfish and Leiocassis longirostris.
从患病南方大口鲶分离得到病原菌N1、N2、N3、N4，以N3为宿主菌，从鱼塘淤泥中分离到三株蛭弧菌。
The pathogenic strains were isolated from sick Silurus meridionalis, named N1, N2, N3 and N4. And three Bdellovibrios were isolated from fishpond sullage using N3 as prey.
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