[2] The skipjack trevally is steely blue in colour with an obvious, sharply demarcated, all-black spot with on the upper margin of the operculum, which has roughly the same diameter as the pupil.

It is the smallest member of the genus Pseudocaranx, which rarely grows longer than a fork length of 20 cm (7.9 in).

Also, a specimen was recorded from as far north as the Exmouth Gulf, which may represent an instance of vagrancy,[3][1] The skipjack trevally is a coastal species; the adults are found over sandy substrates and seagrass and often enter estuaries.

[2] The juveniles occur in large schools and are often caught in considerable numbers by fisheries targeting prawns.

[1] The skipjack trevally was described in 1931 as Usacaranx georgianus wrighti by Gilbert Percy Whitley with the type locality given as "40 miles west of Kingston, South Australia, depth 30 fathoms".