Description
The shrimp scad is can grow to a large size compared to other scads, reaching a maximum known length of 40 cm, but more often seen around 25 cm. The shrimp scad has a body profile very similar to other scads and some other carangids, with an oblong, compressed body and dorsal and ventral profiles which are almost evenly convex. The snout is pointed and the eye diameter is nearly equal to the snout length, with an adipose eyelid well developed on the posterior half of eye. There are two moderately high, separate dorsal fins, the first of which has eight spines, while the second has a single spine followed by 23 to 25 soft rays. The anal fin has two detached spines followed by one spine connected to 18 to 20 soft rays. The anterior section of the lateral line is strongly curved, containing thirty one to thirty six scales, while the straight section consists of seventy seven to eighty five scutes.
The colour of the body is an overall silver colour, with a green-blue tone on the upper body, while the underside fades to a more white colour. There is a diffuse dusky blotch on margin of operculum which is bordered by a smaller white spot. The spinous dorsal fin, including the last dorsal fin spine is blackish or dusky, the soft dorsal fin is blackish or dusky above the scaly sheath and the margin of first to fourth upper soft rays is whitish. The middle portion of the anal fin below the scaly sheath is slightly blackish or dusk. The caudal fin is often a striking yellow, especially when fresh, with the upper caudal lobe often fading to a darker shade. The posterior scutes may also be a yellow to rusty colour, especially after removal from the water.
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