This species is distinguished from its congeners by the following characters: gill rakers on the first and second gill arches 31-36 rarely 37, on first gill arch only 14-18 rakers; osseous medial groove absent; fleshy medial groove of neurocranium conspicuous or inconspicuous, but never surpassing posterior margin of eyes; lateral margin of sphenotic straight, as wide anteriorly as medially; pterotic lateral margin markedly convex, sometimes angled; mouth 10.5-13.2% SL; cephalic shield at frontals area 8.8-10.1% SL; mesethmoid median portion narrow; mesethmoid medial notch narrow and deep; longer pectoral-fin spine 18.2-22.6% SL; external posterior branch of lateral ethmoid columnar and thin; fenestra delimited by mesethmoid and lateral ethmoid conspicuous (Ref. 116660).