形态描述
体长，稍侧扁，腹部圆。头较小。吻钝。口下位，甚宽。吻皮边缘具浅缺刻，盖住上唇中部。口角处外露。下唇与下颌有深沟相隔，内面乳突细小，唇后有浅沟相通。颏沟显著。下颌具锐利角质缘。须2对，细小。背鳍无硬刺，最长鳍条等于头长；尾鳍分叉极深。
生物学
This subspecies looks similar to Sinilabeo decorus, but has a postlabial groove continuous across the chin. It is found in the Zhujiang River and its usual weight is about 2-3 kg.
国内分布
Pearl Riv.