FISHES 
the streams, but as the temperature rises and hot 
weather sets in they retire to the deeper pools or the 
vicinity of cold springs, where they remain until the 
return of autumn starts them up stream again. 
Though commonly called Brook Trout, our fish is 
really a Charr, and is closely allied to, if not identical 
with, the famous Charr of North Britain and the 
continent of Europe. 
ORDER HAPLOMI. (Pike-like Fishes.) 
Umpripar. (Mud Minnows.) 
30. Mud Minnow. Dogfish. Umbra limi (Kirt- 
land).—Common and generally distributed in muddy 
streams and inlets. The name is said to be derived 
from a habit this fish has of burrowing into the mud 
when the water evaporates from the ditches and 
ponds it frequents. It is seldom seen in clear water, 
preferring to hide at all times under stones or among 
weeds. It reaches a length of about four inches. 
Lucia. (Pikes.) 
31. Green Pike. Lucius reticulatus (Lesueur). 
This small Pike does not seem to be at all common 
in our waters. JI have taken a few in Toronto Bay. 
Its usual haunts are weedy streams, ponds and bays, 
where it lies in wait for the fish, frogs and other 
living creatures upon which it preys. It is said 
under favourable circumstances to attain a length 
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