Aspect: Sleek and elongate plain silver body, with matching elongated head. Serrated spine and rear "keel" aft dorsal and anal fins. Population: Common, but often mistaken for Cero (q.v.). Notable feature: Looks very much like a Cero (though it can be larger), but is totally devoid of lateral spots. High lateral line abruptly kinks downwards at mid-body length to continue in a centreline position towards the tail. Environment: Open waters. Behaviour: Not too wary, but like Cero will swimm away after a short while.