形态描述
体侧扁，头背面平，头后背部显著隆起。腹棱自腹鳍基至肛门。口上位，下颌突出并上翘，口裂与体纵轴近垂直。眼大，头长约为眼径的3倍。无须。侧线微下弯，侧线鳞60—66。背鳍硬刺光滑、粗壮；臀鳍基部甚长。
生物学
Body compressed, with a keel from the ventral to the anus. Mouth large and vertical, eyes large, This predatory fish inhabits the slow current in the Zhujiang River.
国内分布
钱塘江，珠江和元江