Hemibagrus velox Tan & Ng 2000

Caudal peduncle depth 6.2-7.5 cm SL; the upper lobe of the caudal fin regularly tapering; genital appendage by a distance of 4.3-5.9% SL; irregular serrations on the posterior edge of the dorsal spine; snout length 33.3-38.9% HL; interorbital distance 29.4-33.9% HL; length of maxillary barbel 198.3-238.2 HL; length of inner mandibular barbel 44.7-52.1% HL; branchiostegal rays 10-11 (Ref. 40801).

Dorsal spines (total): 1; Dorsal soft rays (total): 7 - 8; Analspines: 0; Analsoft rays: 11 - 13; Vertebrae: 50 - 52

Found in upper reaches of rivers, usually in fast-flowing waters with rocky or sandy bottom (Ref. 40801).