20 



Hawaiian Fishes 



These sharks are fierce and voracious and are enemies of fishermen. 

 They are bottom feeders Hving on fish, crustaceans, shell fish, dead fish, 

 and other foods. The young are born alive during the summer months. 

 It is reported that one female shark may give birth to young ranging in 

 number from twenty to fifty. 



Although the liver, skin, and fins of this fish are valuable, the flesh 

 is so rank and ofl^ensive that this shark is often referred to as Sweet 

 William. 



The blue shark is cosmopolitan and lives in all warm seas. Dr. Stein- 

 dachner, the famous German ichthyologist, caught a five foot specimen 

 at Laysan Island at the time of his visit here in 1901. 



Tiger Shark 



Also known as Mano, Manoo, or Spotted Shark 

 5-2 Galeocerdo arcticus ( Faber ) 



The tiger shark is a large shark and measures from fifteen to thirty 

 feet in length. It is brownish in color above with blackish cross bars and 

 is whitish or paler below. The body is robust and tapering and the head 

 is blunt with a short, broad snout and a crescent shaped mouth. This fish 

 may be identified by the pit on the tail above and below the base of the 

 caudal fin and by the pore or spiracle behind the eye. The teeth are large, 

 obliquely set, coarsely serrated on both margins, and have a deep notch 

 on the outer margin. The caudal fin is about one-third the length of the 

 body. 



Young sharks are brownish in color with numerous irregular darker 

 spots along the sides and on the fins. These spots are often joined to form 

 bars. As the fish grows older, the color darkens and the markings fade 

 so that the adults become a uniform grayish brown. 



