CAHN — MAMMALS OF MINNESOTA 
73 
a part of the dam — are gone : the conclusions are obvious. There is another col- 
ony, which the writer did not visit, on McCabe Lake, just north of Beaver Lake, 
and so far as the data go, these are the only two colonies in the county. 
26. Muskrat. Ondatra zibethica zihethica (Linn.). — Common throughout the 
county wherever there are suitable conditions, but surprisingly little in evidence 
as compared with northern Wisconsin and northern Michigan. Seen swimming 
in Lake Minnewanka, in Cedar, and Rice Lakes, as well as in many of the small 
unnamed lakes, and heard splashing almost every night. Several houses were 
seen, though none was of considerable size. 
27. Meadow Mouse. Microtus pennsylvanicus (Ord). — Abundant throughout 
the county, and seen usually as a dark moving object in the leafy underbrush. 
The species is more active at night than in the day time. An individual of the 
species was seen crawling about on a pile of drifting wood in the locks where 
the Mississippi River leaves Lake Winnibigoshish. Evidence of damage to 
young fruit trees was common in new orchards. 
28. Norway Rat. Rattus norvegicus (Erxleben). — Found commonly about the 
homesteads and in the towns, and probably quite local in distribution. How- 
ever, it mysteriously appears upon the scene shortly after a house is built, prob- 
ably being transported with the lumber or boxes. 
29. House Mouse. Mus musculus Linn. — Common about the homesteads 
and in the towns. 
30. Northern Deer Mouse. Per omy sens maniculatus gracilis (LeConte). — 
This beautiful rodent is very common throughout the county, and is frequently 
seen both in the woods and about the houses, in which it makes itself perfectly 
at home. Gets into the food supply, but does no serious damage. 
31. Jumping Mouse. Zapus hudsonius (Zimm.). — The writer is unable to offer 
any information as to the abundance of this species in the county, but its occur- 
rence is undoubted. A skin found at Ely was taken within the county in July, 
1917, and the presence of the species is known generally to those familiar with 
the smaller animals of the region. 
32. Short-tailed Shrew. Blarina hrevicauda br evicauda {Ss^y). — Seen by the 
writer only once; little information can be offered at the present time as to the 
abundance of the species. 
33. Common Shrew. Sorex personatus personatus St. Hilaire. — A single speci- 
men of this little shrew was found in the woods under a pile of cut logs, near 
Lake Minnewanka, on August 12. The animal measured 84 mm., and the stomach 
contents were entirely cricket remains. 
34. Richardson’s Shrew. Sorex richardsoni Bach. — Two shrews of this spe- 
cies were found, one dead near the cabin, and another brought in by Bubbles. 
They measured 110.5 mm. and 114 mm. respectively. 
35. Marsh Shrew. Neosorex palustris (Rich.). — This, the largest of the shrews 
found, is recorded from a single specimen caught in a swamp near Cedar Lake, 
and from another seen at Balsam Lake. The former measured 151.5 mm. 
36. Say’s Bat. Myotis subulatus subulatus (Say). — This bat is very common 
everywhere in the county, and is found both in the woods and around the home- 
steads. 
37. Little Brown Bat. Myotis lucifugus lucifugus (LeConte). — One of these 
bats was taken and two more seen, all near camp on Lake Minnewanka. The 
