AMERICAN SHARK. S47 



pressed, and obtuse : gape wide : in the lower jaw 

 several rows of very large, compressed, squarish, 

 serrated teeth : in the upper jaw a single row of 

 similar teeth on each side, and in front many 

 smaller simple ones, of a narrower and sharper 

 form than the others : dorsal fin single : pectoral 

 fins horizontal : anal small, and situated midway 

 between the ventral and tail. Native of the Medi- 

 terranean : described by Broussonet. 



AMERICAN SHARK. 



Squalus Americanus. S, pinnis dorsalihus inermibns, posteriore 

 major e, ventralibns magnis caudce proximis. Lin. GmeL 

 Brouss. act. Far. 178O. 



Shark with unarmed dorsal finSj of which the hindermost is 

 the largest, and large ventral fins situated near the tail. 



Length about three feet : skin rough : scales 

 small and angular ; body cylindric : head large : 

 snout short, and obtuse : teeth oblong, sharp, com- 

 pressed, and disposed in several rows ; the largest 

 serrated on the edges : eyes large : first dorsal fin 

 placed before the middle of the body j the other 

 rather beyond the anal : pectoral fins suboval ; tail 

 lanceolate. Native of the American seas : de- 

 scribed by Broussonet. 



