H aw aiian Fishes 



155 



Drawn from Jordan & Evermann 



marked with black spots or by more or less wavy bars. These wavy bars 

 cover the last three-fifths of the body and run backward and upward. 

 There are no markings below the lateral line. This fish may be recognized 

 by the fact that the dorsal fins are far apart and by the corselet formed 

 by scales on the front of the body. It has seven finlets above and five 

 below. The frigate mackerel is a smaller mackerel than the skipjack and 

 may reach a weight of ten pounds. In schools, however, it seldom exceeds 

 five pounds in weight. 



The frigate mackerel is circumtropical and inhabits all warm seas. 



Ocean Bonito or Skipjack 



Also known as Aku, Aku Kinau, Little Tunny, or Striped Tuna 

 75-3 Euthynnus pelamis (Linne) 



Plate I, Figure 7 



Drawn from Jordan & Evermann 



The aku is the smallest of the tunas and usually measures less than 

 thirty inches. It is of a bluish color above and silvery beneath. The 

 tongue and the inside of the mouth are likewise silvery in color. The 

 finlet number eight above and seven below. The eyes are large and are 

 yellow in color with black centers. This fish is easily recognized by the 



