56 SPINOUS SHARK. 



waved, and widest at the middle; the lower lobe rounded and 

 obsolete. On the back the colour dark; lighter, with tints of 

 blue, along the upper sides and tail; yellow Avith reddish tints 

 on the belly; the fins edged with reddish flesh-colour. There 

 are no spines on the snout and fins, and those on the body are 

 nearly straight. 



Mr. Fox describes these spines as being tubercles with re- 

 curved points, and as such they are represented in ^Ir. Yarrell's 

 engraving. Lacepede says they are tubercles of unequal size, 

 large and round at the base, as in the Thornback Kay, with 

 one or two crooked points to each; and Risso's description 

 expresses nearly the same thing, but he represents the second 

 dorsal fin as of verv small size. 



