Grammatorcynus bilineatus

The double lined mackerel is an occasional fish on the coasts of Indonesia. It usually swims near the surface or mid-water, usually in schools.

I observed it twice in the Maluku in current swept areas, in Sulawasi and in Bali it is locally frequent.

It looks like a mix between dog tooth tuna and the double spotted queenfish, but it’s a different species. Its unique feature is the two clearly visible lateral lines. In action it can be distinguished from the latter by the white area at the center of the tail’s fork.

Its size greater than the double spotted queenfish attracts attention. It is a fast and nervous fish.

The double lined mackerel is said to have poor meat and should not be considered.