Description: Body depth 10.1-10.9 times in standard length for adults, 8.7-9.4 times in standard length for specimens of 5-8 cm standard length; head 4.3-4.8 times in standard length (Ref. 4164). Lower jaw 2.9-4.4 times in standard length and 0.7-0.9 times in head length; upper jaw width in length 1.0-1.1 in specimens greater than 8 cm standard length, shorter in smaller specimens; teeth arranged in 2-4 rows (Ref. 4164). Preorbital distance 1.5-1.7 times in orbit and 1.4-1.8 times in upper jaw length (Ref. 4164). Dorsal fin with 14-17 rays; anal fin with 15-16 rays; pectoral fin with 10-12 rays; pelvic fin closer to pectoral fin origin than to caudal fin base (Ref. 4164). Predorsal scales 31-38; no scales on dorsal fin; a maximum of 2-3 scales on anterior 2 membranes of anal fin; scales on upper jaw in 1 row on either side of median ridge (Ref. 4164).