The Scad ; Round Robin or Quia-Quia 



to Long Island. It may be known by the 2 small detached 

 finlets and the short anal. It is sometimes called runner. 



The genus Decaplenis contains the mackerel scads of which 

 there are several species, only 5 of which occur within our 

 limits. One of these, D. pnnctaius, known as the scad, round 

 robin or quia-quia, is common on the coasts of Florida and 





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among the West Indies. It reaches a foot in length. Another 

 species is the common mackerel scad, D. macarellus, which is 

 found in the warmer parts of the Atlantic. It strays northward 

 on our coast to Cape Cod. 



The genus Trachurus has only 2 species within our limits, 

 neither of much value as food. 



The xurel or saurel, T. symmetriciis, is common on our 

 Pacific Coast from San Francisco south to the Galapagos. In 



summer it is abundant in the San Francisco markets where it 

 is regarded as a good food-fish. It reaches 2 feet tn length. 



