It is an elongated cylindrical fish, tapering slightly at both ends; the length is typically six to ten times the depth.

There are many sharp teeth, and the dorsal surface of the head has a patch of enlarged scales.

There are three dark longitudinal lines on the top of the back and the fins have dusky edges.

It occurs in the shallow sublittoral zone down to depths of about 5 m (16 ft) in coastal areas, bays and estuaries.

No specific threats to this species have been identified and the International Union for Conservation of Nature has listed it as being of "least concern".