Frozen Horse Mackerel Whole Round Other name: Hard tail scad Scientific name: (Megalaspis cordyla) Origin: Vietnam Size: 4 - 6, 6 - 8, 8 - 10 (pcs/kg) Packing: IQF/Block 10 kg bulk bag/carton Glazing: 0% , 10%, 20%, 30% ****** Horse mackerel is a vague vernacular term for a range of species of fish throughout the English-speaking world. It is commonly applied to pelagic fishes, especially of the Carangidae (jack mackerels and scads) family, most commonly those of the genera Trachurus or Caranx.