Colouration: Colouration of living mature adult males: scale centres iridescent turquoise edged crimson, edging on scales forming a reticular pattern when fully developed; ventrally crimson from midway between insertion of pectoral fins to and along base of anal fin; crimson region broadest between pelvic fins and anal fin; pectoral fins practically transparent, pale olive; pelvic fins crimson tipped with black ; anal fin crimson at base, then a clear band colourless or pale turquoise, the rest of the anal fin, except for the extreme edge where the extended rays are black, being crimson; caudal fin crimson, darker at base, with narrow black band, or, as in some specimens, a colourless posterior border; in either pattern the tips of any extended rays are black; the dorsal fin has membrane pale olive or pale turquoise with crimson to red-brown spots and irregular bands; membrane darker towards extremity with edge turquoise; the pupil of the eye has a narrow golden border, the iris being golden, tinted turquoise in places with traces of pigmented vertical dark bar through eye; chin and throat pale golden olive, operculum turquoise with crimson markins (Ref. 96544). Colouration of living females is drab silvery-grey with pale olive or pale turquoise-tinted fins (Ref. 96544). Preserved specimens are practically featureless; both sexes have numerous small black dots visible through the scales, males being generally darker; the membrane of the dorsal fin is pigmented giving a blotchy effect; the pale band in the anal fin becomes a pigmented band of small dots; the pale band at the posterior extremity of the caudal fin is also pigmented with minute dots, as are extended tips of the rays of the anal fin and articulations of the lepidotrichia of both fins (Ref. 96544).