CHAPTER VI : PERCH-LIKE FISHES 



[continued) . 



Scombroids. Mackerels and Tunnies. Tunnies. Alba- 

 cores. Yellow-finned Albacores. Spanish Mackerels or 

 King-fishes. Peto. Spear-fishes and Sail-fishes. Spear- 

 fishes or Marlins. Sail-fishes. Sword-fish or Broadbill. 



All the fishes dealt with in this chapter belong to another 

 suborder of Perch-like Fishes, namely, the Scombroids. The 

 members of this group are closely related to the Trichiuroids 

 described in the previous chapter, but differ in the arrange- 

 ment of the bones and rays supporting the powerful, widely- 

 forked caudal fin. The Scombroids include such giants as 

 the Tunnies, Albacores, King-fishes, Sword-fishes and so on, 

 as well as the smaller Bonitoes and Mackerels. 



MACKERELS AND TUNNIES. 



(Family Scombrid^.) 



Scombroids with a shapely, spindle-shaped body, tapering 

 behind to a slender peduncle, and more or less covered with 

 minute, closely adherent, smooth scales. The head is bullet- 

 shaped and sharply pointed in front. The mouth is rather 

 large, and the jaws are armed with sharp teeth of varying 

 size ; there are no large canine teeth. The gill-covers are 



