MAMMALS. 
93 
variety. Brown and black hairs are mixed on the under 
parts to a greater extent than usual, and, as in all speci- 
mens, this one is blacker on the back. 
68. Arvicola agrestis, De Sehjs. Common Field Vole. 
Common. We have seen it often in the limestone district, 
and occasionally in the caverns of the limestone rock, where 
we once came across a large store of food, which must have 
lasted past the winter months. The owner scuttled out 
from its midst near the back of the largest cave, narrowly 
escaping capture. Also common in the east of the county. 
Mr. Eeid never met with this species in his youth, when 
much more frequently out among the hills and fields than 
now, and, — says Mr. Eeid, — " only within a few years back 
did I see a specimen of it. A gentleman brought me the 
specimen to see if I knew it. He found it in his garden, 
and he had never seen its like before. You know," adds 
Mr. Eeid, " how common these are in Orkney, where their 
tracks round about Kirkwall can be seen for long distances, 
Baikie and Heddle say miles." 
69. Arvicola glareolus, (Schreh.) Red Field Vole. 
Obs. — We have no record of the red field vole having occurred 
in either county. We mention the negative, as we think it 
possibly does occur though undiscovered. 
Family LEPORIDiE. 
70. Lepus europeus, Fall. Common Hare. 
The brown hare, as it is called in the Highlands, is pretty 
plentiful in the east of the county, frequenting indifferently 
the cultivated land and the heather that borders it. When 
