Key to species of Neolissochilus in Peninsular Malaysia

1a. Total gill rakers 14–17; predorsal scales 8–10, usually 9; lateral-line scales 20–24, usually 22; scales on hypural plate usually 3, scales from isthmus to pelvic-fin base 12–14, usually 13............................................. N. soroides

1b. Total gill rakers 12–14; predorsal scales 6–8, usually 7; lateral-line scales 18–22, usually 20; scales on hypural plate usually 2, scales from isthmus to pelvic-fin base 10–12 usually 11............................................. N. hendersoni