 The trevally then press their ventral surfaces together to spawn, often swimming almost horizontally, before returning to the school and changing back to their normal silvery colour.The larvae of bigeye trevally have been extensively described, with defining features being a conspicuously pigmented supraoccipital crest, relatively deep body and an anal fin ray count of 15 to 17, the lowest of any east Pacific carangid.There has been little research into the later stages of growth and their rates.