The golden-line barbel (Sinocyclocheilus grahami) is a species of cyprinid fish endemic to Dian Lake and its tributaries in Yunnan, China. It has been extirpated from the lake itself due to heavy pollution, but survives in a single tributary and a few small temple ponds. This species can reach a length of 23cm (09inches) though most are only around 17cm (07inches). The greatest weight known for this species is 250g.