CARTILAGINOUS FISHES. 323 



electric ray, has a smooth, naked, almost circular body, 

 and a long, fleshy tail ; it possesses a powerful electric 

 battery, the discharge from which can disable a strong 

 man. It is found in the Atlantic and Indian Oceans and 

 in the Mediterranean. 



FIG. 281. 



ELECTKIC BAY. 



Ganoids, The sturgeon lives in nearly all seas, and at 

 certain seasons ascends large rivers, where it is taken in 

 nets. It has no teeth, and feeds on small fish, and even 

 larvae, which it digs out of the mud with its tough nose. 



FIG. 282. 



STURGEON (Acipenser sturio). 



Its body is protected by several rows of osseous bucklers, 

 arranged longitudinally on the surface of the skin. It 



