Diagnosis: larger-sized ‘Lampeye’ species with rounded dorsal and anal fin; fin extensions may be present at the upper and lower corners of the caudal fin and at the anal fin; ventral fins inserted below or just behind pectorals; dorsal fin with 9-13 rays; anal fin with 15-19 rays; scales on mid-longitudinal series 27-31 (Ref. 57259).

Colouration: Male colouration: variable in colouration; light olive to light grey body colour, on the sides strong light blue reflections; on the back in some populations a red-brown stripe, parallel to the dorsal profile; the colour of the unpaired fins is variable and ranges from light blue-grey through yellow and orange to red; these fins usually with a pattern of red spots and stripes; sometimes a dark red margin is present; the caudal fin usually light blue reflecting at its base, changing in the colour as found in the other fins; in its central part spots or stripes in red, usually forming crossbars; a red margin at the upper and lower side may be present; fin extensions, when present mostly white (Ref. 57259). Female colouration: simply semi-translucent grey or pale olive; ventral area more white to silver; unpaired fins colourless (Ref. 57259). Both sexes show an orange reflecting upper part at the eye iris (Ref. 57259).