Description: Dorsal profile of body slightly convex from snout tip to dorsal-fin origin; slightly concave from dorsal-fin origin to end of caudal peduncle; ventral profile convex from lower jaw to end of anal-fin base; nearly straight on caudal peduncle; anterior portion of body laterally compressed, becoming more compressed behind anal-fin origin (Ref. 123968). In males, dorsal fin rounded and slightly more elongated than in females; its origin in vertical between 4th and 5th anal-fin rays; anal fin rounded and slightly elongated in males; pelvic fin in males reaching between urogenital papilla aperture and base of first anal-fin ray; in females, pelvic fin shorter than in males, tip reaching region just before urogenital opening; caudal fin elliptical in both sexes; pectoral fin elliptical in both males and females, its posterior margin reaching vertical just behind pelvic-fin base; in both males and females, dorsal-fin rays 6-8; anal-fin rays 10-13; caudal-fin rays 21-24; pectoral-fin rays 11-14; pelvic-fin rays 6 (Ref. 123968). Frontal squamation G-patterned; head neuromasts placed in shallow grooves or on same level as head surface; cephalic lateral-line system: anterior portion of supraorbital sensory canal open, with three neuromasts, anteriormost one anteriorly displaced from other two; posterior portion open, with three exposed neuromats; anterior infra-orbital canal open, with three exposed neuromasts; median portion of infra-orbital region with series of 9-11 minute neuromasts; posterior infra-orbital canal closed, with two pores; preopercular canal closed in both dorsal and ventral portions with 5-6 pores; mandibular canal represented by two neuromasts, one in vertical through corner of mouth and other anteriorly positioned in the lower jaw ventral portion (Ref. 123968). Longitudinal series of scales 22-24; transverse series of scales 6; circumpeduncular scales 10; predorsal scales 12-14 (Ref. 123968). Mesethmoid and vomer absent; frontal anterior margin slightly extends anteriorly between nasals; parasphenoid medial process short, not contacting pterosphenoid; anterior margin rounded; lateral ethmoid overlaps anterior portion of parasphenoid; supraoccipital posterior process long, reaching first vertebra; lachrymal with posteroventral extension; premaxillary and dentary teeth well developed, conical; outer row with larger well-spaced teeth; retroarticular triangular or subtriangular, about same depth and length to anguloarticular ventral arm; dentary deep; dorsal process of maxilla broad, overlapping premaxilla ascending process; ventral process greatly reduced, consisting of rounded ventromedial bulge; ventral arm of maxilla broad, laterally expanded; premaxilla ascending process medial surface with convex profile; entopterygoid posterior portion and symplectic keel deep; opercle triangular, anterodorsal process present; anterior process of anterior ceratohyal not extending ventrally to ventral hypohyal; urohyal ventral margin straight to slightly concave; first and second basibranchials lateral bone flanges unexpanded; basihyal cartilaginous portion shorter than osseous portion; fourth ceratobranchial, anterior third portion with teeth; second pharyngobranchial plate with teeth; base of first epibranchial broad, more than three times width of anterior portion; supracleithrum rounded; posttemporal rodlike, ventral arm absent; cleithrum bony flange not covering scapula foramen; cleithrum posterodorsal flap rounded; ventral postcleithrum slender, similar in width to adjacent first pleural rib; basipterygium posterior process shorter than medial process; anal-fin proximal radials about same length and parallel to each other; hypurals completely fused; parhypural proximal end overlapping preural centrum; total vertebrae 24-26, precaudal 1012 and caudal 13-15; first proximal radial of dorsal fin between neural spine of vertebrae 11 and 12; first proximal radial of anal fin between pleural rib of vertebrae 9 and 11 (Ref. 123968). Gillrakers on first branchial arch 7-9; branchiostegal rays 5 (Ref. 123968).

Colouration: Colouration in alcohol: overall colouration of body pale yellowish brown with conspicuous dark brown reticulate pattern along margins of flank scales; anterior portion of flank darker; dorsal portion of body and anterior region of flank dark brown, densely pigmented; ventral surface scarcely pigmented; brown chromatophores along whole mid-body line of flank, forming conspicuous line; head overall colouration yellowish brown; brown chromatophores on dorsum of head, lower jaw, and preorbital region, forming distinct darker region; iris silver, darker close to pupil; dark pigment concentrated on dorsal margin of eye; all fins hyaline in females, with melanophores sparsely concentrated only on base of anal-, dorsal-, and caudal-fin membranes; melanophores forming conspicuous transversal bands on male dorsal and anal fins, and faint brown margin in both fins; caudal fin with three to five conspicuous vertical bands, and faint brown margin; pelvic fin with melanophores sparsely concentrated on fin membrane; pectoral fin hyaline; female urogenital opening pocket scales with dark brown chromatophores (Ref. 123968). Colouration in life of males: side of body bright green, mainly in posterior head region and flank anterior region, with conspicuous dark brown reticulate pattern along scale margins, slightly thicker on each scale anterior margin; dorsum yellowish green; ventral surface white between head and region anterior to pelvic-fin origin; grey between pelvic fin and caudal peduncle; side of head predominantly bluish green, dorsal portion yellowish brown, postorbital region with distinct bright green blotch; iris dark grey, light yellow close to pupil; eye bright bluish green on dorsal portion; lower jaw and preorbital region dark brown-grey, forming distinct horizontal band; pectoral fin hyaline; all other fins orange-yellow with dark brown dots arranged as distinct bands; dorsal and anal fins with transverse bands; and caudal fin with three to five rows of transverse bands; anal, dorsal, and caudal fins with dark brown to black marginal band, broader in caudal fin (Ref. 123968). Colouration in life of females: side of body pale grey, with conspicuous dark brown reticulate pattern along scale margins; anterior portion of flank darker; bluish green iridescent blotch on region from pectoral-fin insertion into vertical to pelvic fin; dorsum grey-brown; venter white between head and region just anterior to urogenital opening; bright purple-blue between urogenital opening and end of anal-fin base; brownish grey from end of the anal-fin base to caudal peduncle; scales around urogenital opening covered with dark chromatophores; side of head predominantly dark brown, ventral portion white, dorsal portion dark brown, postorbital region with distinct light blue bright blotch; iris dark grey, light yellow close to pupil; eye bright silver-green on dorsal portion; lower jaw and preorbital region dark brown-grey, forming distinct stripe; pectoral and pelvic fins hyaline; dorsal fin orange, distal margin hyaline; anal fin hyaline, with distinct orange blotch on anterior portion; caudal fin hyaline with light orange colouration on ray insertions (Ref. 123968).