206 Dr. Gapper on the Mammalia of Upper Canada. 
furnished with these organs. The pencil of hair on the ears of winter 
specimens is more distinct than it is represented in Dr. Richardson’s 
plate, and the black line on the sides is always more or less distinct ; 
probably these differences are owing to the fur never becoming so long 
in these latitudes. 
(60.) Sctwrus niger (Linn.) The Black Squirrel. 
I have generally found them to measure from the tip of the nose to the 
insertion of the tail rather less than a foot; the tail itself 13 inches. They 
_ are most commonly entirely black, but I have shot several with patches of 
light brown on the belly, each hair ringed with black ; in other specimens, 
still more rare, with the whole under parts of this colour, and with many of 
the hairs on the back and tail ringed with yellowish white. The ears of 
the Black Squirrel are covered with adpressed hairs in the summer, but 
in the winter those on the upper side are lengthened so as to over-top the » 
ear about half an inch. It is found in all the settled parts, varying, 
according to my observation, only as stated above. I have shot many 
dozens of them. It makes its nest in hollow trees, filling the cavity with 
thistle-down, in which warm material it buries itself when it retires to 
rest. 
I have observed the recent tracks of these Squirrels made in the snow 
during the severest weather, but they do not seem to remain long at a 
time out of their nest during inclement weather. 
Sciurus leucotis (nobis.) White-eared Squirrel. 
Grey Squirrel with a tail rather longer than the head and body; white 
.ears ; the upper parts varied with a mixture of white, black, and ochry ; 
' under parts greyish white ; tail edged with white. 
TAB, XI. 
This Squirrel measures, from the nose to the insertion of the tail 12 
inches ; the tail itself 13. The fur has little lustre, and is slightly erisped- 
The hairs on the upper parts and tail are all annulated with ochre and 
black, or black and white ; on the head, and a broad stripe along the back, 
the tips are ochry ; on the cheeks, a stripe on the sides next the white of 
the belly, and on the upper part of the foot, excepting the toes, the hair 
is almost entirely ochry ; on the rest of the sides, limbs, and outside the 
tail the hairs are mostly tipped with white ; the under parts are entirely 
greyish white ; round the eyes and back part of the ears they are pure 
