Occurs in the middle reaches of streams with swift current over a substrate of gravel. Is always found in riffles at altitudes below 500 m .
Dorsal spines (total): 0; Dorsal soft rays (total): 11 - 12; Anal spines: 0; Anal soft rays: 7; Vertebrae: 32. Pectoral fin with modally 11 simple and 14 branched rays; pelvic fin with modally 7 simple and 16 branched rays; predorsal scales 16-17; body uniformly olive brown; predorsal region of dorsum uniform in adults, with dark brown blotches in smaller sub-adults; pectoral fin base unmarked; caudal fin with 3 vertical dark bars. Pectoral fin quite large, length longer than head length; pelvic fin entirely fused posteriorly; lower lobe of caudal fin slightly longer than upper one .: elongated.
Behavioural data for Sinogastromyzon Nantaiensis is currently being reviewed.
Freshwater; demersal. Subtropical
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