Fairly good set of teeth, long slender profile, forked tuna like tail, yellow spots on sides, silvery skin and fight with one pretty strong initial run but not quite as determined and dogged as a bluefish in power or a false albacore in speed and distance. Spanish Mackeral. Two years ago we boated a couple dozen in two different trips on the cape. Good eating but you had to bleed them immediatly and they don't freeze well so take only what you can eat fresh. We found them great fun on the fly rod when they didn't bite thru the leader and they seemed to really like metal such as deadly #^^^^&s. I just looked at a picture of the 'Frigate Mackeral' which you can see here:
http://www.saltwateredge.com/fishing...ts08-03-02.htm
and there are no spots on those babies.