FISHES 
ing. From early in March until early in November 
they are to be found near the shores of Lake Ontario, 
but are at the height of their abundance during June 
and July, and it is during these months that the 
great mortality takes place, millions of dead fish 
being cast up on the shore, and the surface of the 
water being literally strewed with the dead and dying. 
Where they go in the cold months of winter is uncer- 
tain, probably only into the deep water of the lake, 
though it is possible that they may work their way 
down to the Gulf of St. Lawrence. They are eatable, 
but being small and bony are not much appreciated. 
Satmonrwaz. (The Salmons.) 
24. Frost-fish. Round Whitefish. Coregonus 
quadrilateralis (Richardson )—-Common in Lake On- 
tario and highly esteemed as a food fish. It spawns 
in October and November, visiting the shallow parts 
of lakes and sandbars for that purpose. 
25. Common Whitefish. Coregonus clupeiformis 
(Mitchill).—Formerly very abundant in Lake On- 
tario, but now scarce near Toronto. Although this 
is one of the most valuable of our commercial fish, its 
habits are not yet fully understood; undoubtedly 
they vary much according to locality; the depth of 
water, currents or their absence, and climatic con- 
ditions all having some influence upon the movements 
of the fish in search of food, and upon the time and 
place of spawning. In Lake Ontario there is a move- 
ment of the Whitefish in early summer from the 
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