DB. TRAIL'S SILURUS. 187 



come among them ; but in the Transactions of the 

 Wernerian Society, there is a description and figure 

 of a Silurus which does not seem to he alluded to 

 in the volumes of Valenciennes, Dr. Trail has 

 obligingly furnished us with his original notes and 

 drawing, and a copy from the latter is now intro- 

 duced. 



