254 PERCIDJ3. 



consider the proper classical uame of the Black Bass of the 

 St. Lawrence, decidedly to be Grystes — the genus Huro not 

 having been by any means satisfactorily defined, while that of 

 Centrarchus is distinguished by having many spinous rays to 

 the ventral fin ; while the genus Grijstes has but three, Perca 

 two, and Lucioperca only one — this afi'ording a broad and clear 

 distinction. 



