SALMON TRIBE. 
5 QI 
the rivers in autumn to spawn. Jardine writes that “in approaching the entrance 
of rivers, or in seeking out, as it were, some one they preferred, shoals of this fish 
may be seen coasting the bays and headlands, leaping and sporting in great 
numbers, from 1 to 3 or 4 lbs. in weight; and in some of the smaller bays the 
shoals can be traced several times circling it, and apparently feeding.” On the 
other hand, the Continental May-trout spends the colder months in the deepest 
waters of the mountain-lakes, only coming to the surface in May. During the 
summer these trout may be seen swimming round the shoals of small fishes on 
which they prey until they get them well together, when they make a sudden rush 
among them. 
Much the same difference of opinion as obtains with regard 
Cnarr. x o 
to the number of species of trout exists in the case of charr, 
GRAYLING AND CHARR (jt nat. size). 
Dr. Gunther recognising five British lacustrine species, which he regards as distinct 
from S. umbla of the Swiss lakes; while Day includes the whole of these under 
the latter, which is also taken to embrace the ssebling (S. sctlvelinus ) of the 
mountain-lakes of Bavaria and Austria, as well as the migratory northern charr 
(S. alpinus), ranging from Lapland and Scandinavia to Iceland and the northern 
parts of Scotland. All charr differ from salmon and trout in having the teeth at 
all ages confined to the head of the vomer, instead of being distributed over its 
whole length; and all the forms mentioned above, which have a very uniform 
