Suborbital spine absent. Preopercle with 3 transverse scale rows. Pectoral and pelvic fins long, reaching to between level of anus and origin of anal fin. First two dorsal spines close together, almost fused, forming a very long filament. Upper lobe of caudal fin produced to form a trailing filament. A line drawn up from the posterior edge of suborbital reaching the dorsal profile about 2 to 5 scale rows before origin of dorsal fin. Axillary scale present. Color: Head and body pinkish, silvery-white below.