Thryssa mystax is silver, darker dorsally. There is a distinctive dark blotch behind upper part of gill opening, which can easily identify the species from other "Thryssa" species. Caudal fin is yellowish. It feeds on planktons, fish larva, and small crustaceans like shrimp larva. Thryssa mystax The moustached thryssa ("Thryssa mystax"), also known as Gangetic anchovy, is a species of oceanodromous ray-finned fish in the family Engraulidae. It is found in the tropical western Indo-Pacific region from India, Sri Lanka to Myanmar and south to Java, and Indonesia. It is a small schooling fish found in depth of 0-50m. Maximum length do
Longrakered trevally fins are dusky to pale green. In larger individuals the lobes of both these fins are dark, however in small specimens the filamentous of the dorsal fin rays are black while the anal fin rays white. The caudal fin is dusky. Juveniles may have 7–8 dark vertical crossbands across their body. The longrakered trevally is distributed throughout the tropical and subtropical waters of the Indian and West Pacific Oceans. In the Indian Ocean the species ranges from as far south as Mozambique and Madagascar, north to the Red Sea and Persian Gulf and east to India, South East Asia and