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
Terapon puta longer and extends as far or beyond opercular margin. "Terapon puta" is silvery-grey with four longitudinal, parallel stripes which extend from the head to the caudal fin, upper three stripes are black, the lowermost stripe is paler and varies from yellowish to brown. There is a large black spot on the upper part of front part dorsal fin. Grows to 15 cm standard length, but more usually 5–12 cm. "Terapon puta" has an Indo-Pacific distribution from the Red Sea south to Zanzibar and through entire Indian Ocean to the Philippines and northern Australia It was first recorded in the Mediterranean