52 Thirty-fifth Annual Meeting 
and from the crenations well marked flutings converge toward 
the growth center. In all of them the striations on the caudal 
or exposed area of the scale are much more numerous near the 
center of the scale than near the caudal border. 
On the other hand, in the whitefish the growth center is in 
90 per cent. of the fish distinctly behind the geometrical center 

FIG. 2—A typical scale of whitefish (Coregonus clupeiformis Mitchill). This scale is distinguished 
by its very large, irregular central area. The caudal border is at the left. The scale is viewed 
as a transparent object and is magnified about ten diameters. From a photograph. 
of the scale. The caudal border shows but little trace of crena- 
tion and the caudal area but little fluting. Striations of the 
caudal area are apparently as numerous near the border as at 
the center of the scale. 
The differences between the scales are such that they may be 
easily distinguished at once by a good hand lens. 
Turning now to the salt-fish which were seized as illegal 
whitefish, we find that in their scale characters (position of the 
growth center, crenation, fluting, and striation of the caudal 
area) they agree with the menominees. Twenty-eight of the 

