218 SLENDER SALMON. 



round them. We observe, however, that in some species of 

 this family, the radii of these spots are formed by the overlying 

 of some bright scales across one or two dark ones ; thus permitting 

 only a portion of the dark to appear. Fin rays — of the dorsal 

 fifteen, the first very short, fourth the longest; pectoral fifteen, 

 ventral ten, with a separate wing; caudal eighteen. The aspect 

 of this fish and markings of its head differ from those of the 

 Salmon. The usual parasitic animals of the Salmon when coming 

 from the sea were not found on it. 



