[地方名]大头青、大口鱼、大头鱼、明太鱼、水口、阔口鱼、大头腥、石肠鱼。[形态特征]体延长,稍侧扁,尾部向后渐细,一般体长25-40cm,体重300-750g。头大,口大,上颌略长于下颌,颏部有一触须,须长等于或略长于眼径。两颌及犁骨均具有绒毛状牙。体被细小圆鳞易脱落,侧线明显。背鳍3个,臀鳍2个,各鳍均无硬棘,完全由鳍条 [Local name] big green, big mouth fish, bighead fish, Ming Tai fish, water mouth, wide mouth fish, fish head, stone fish. [Morphological features] Body extension, slightly flat side, tapering tail, the general body length 25-40cm, weight 300-750g. Large head, large mouth, jaw slightly longer than the jaw, chin has a tentacle, to be equal to or slightly longer than the eye diameter. Both jaws and vomer have villous teeth. Body is easy to fall off a small round scales, lateral line obvious. Dorsal fin 3, 2 anal fin, the spines are not spines, completely by the fin