98 



BRANCH VERTEBRATA. 

 FIG. 167. 



Sal' mo S'l'lar. Salmon. L, Lever. ( T ' f -) 



returning leisurely to the sea. Its food in the ocean 

 consists of small animals, some of which may be its 

 own progeny. 



ORDER HAPLOMI (hap lo'mT). 



The voracious American Pickerel [Usox reticulatus] 

 (e'soks retik a la'tus) is master of the waters in which it 

 resides, destroying mercilessly every other fish and even 





FIG. 168. 



E' sox re tic u la' (us. Pickerel. 



the young of its own kind, as well as mammals and 

 birds.* Hence they should be exterminated from all 

 streams intended for the raising of trout, gold-fish, and 

 other soft-finned fishes. 



* A swan was perceived to keep its head under water longer than iisual. 

 TJpon examination, it was found that a Pickerel had so far gorged its head as 

 to kill both itself and the swan. 





