Length: Up to 24 cm. Common to members of its genus, this species has a fairly long snout ending in a rounded point. The body shape is elongated and cylindrical, scales are small, the tailfin is moderately forked with rounded tips, and the anal fin is large. The sub-terminal mouth is toothless, with fleshy “lips”. The mouth and lips of suckers are designed to act like a vacuum cleaner to gather food from the stream bottom. The lips are covered with numerous papillae (minute fleshy projections), which act as sensory receptors for detecting food items. At breeding time, both males and females develop a broad rose or wine-coloured band along their sides which is most vivid in the males.