346 GANOID FISHES. 



than to eye; scutes relatively smaller, smoother and less 

 crowded than in the preceding; blackish, sides paler or 

 reddish; length 2 to 6 feet; D. 37. Great Lakes and 

 Western Rivers. 



2. SCAPHIRHYNCHOPS, Gill. SHOVEL -NOSED STUR- 

 GEONS. 



Scaphirhynchus, Heckel (preoccupied in Birds). 



1. S. platyrhynchus, (Raf.) Gill. SHOVEL-NOSED STUR- 

 GEON. Tail wider than deep, extending beyond caudal 

 rays and ending in a filament; snout nearly the form of 

 a spade; whole body rough with small prickles; dorsal 

 shields 15 or 16; lateral shields 40 to 4G; abdominal 10 

 to 13; all the shields rough and strongly carinated, the 

 keel ending behind in a spine which points backward; 

 size large. Mississippi Valley. 



