Lateral head length 20.5-22.8 %SL; predorsal distance 51.1-53.6 %SL; prepelvic distance 48.7-51.5 %SL; body depth 13.4-16.3 %SL; caudal peduncle length 16.5-19.0 %SL, depth 10.8-12.3 %SL, 1.49-1.66 times in length; anterior nostril pierced on front side of a flap; processus dentiformis present; a median notch in upper lip, a median incision in lower lip; no median notch in lower jaw; cheeks slightly swollen; lateral line complete; anus about 1-2 eye diameters in front of anal-fin origin; 8.5 branched dorsal-fin rays; 5.5 branched anal-fin rays; caudal fin emarginate, with 9+8 branched rays; axillary pelvic lobe present; top of head vermiculated; body with 8-11 bars, usually wider than interspaces, very irregularly shaped and organized, many incomplete; black bar at caudal-fin base complete; dorsal-fin base with black spot anteriorly, followed by a very low elongate blackish blotch (Ref. 36949).