The color of the rainbow sardine is iridescent blue with a shiny gold or brass line below, which quickly fades after death; the hind margin of the tail is broadly dark. The fish has a w-shaped pelvic scute; an isthmus tapering evenly forward; and more anal fin rays.
Mainly an inshore species, the rainbow sardine can be found in Indo-Pacific regions such as the Persian Gulf (and perhaps south to Somalia), Pakistan, India and Malaysia to Indonesia (Kalimantan) and the Philippines.
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