100 



WILD ANIMALS OP GLACIER NATIONAL PARK. 



Masked Siieew: Sorex personatus I. Geoffroy St. Hilaire. — These 

 are the smallest shrews in the park, adult specimens measuring in 

 millimeters: Total length, approximately 100; tail, 10; hind foot, 

 12. In color they are plain sepia brown, slightly paler below, 

 and •^'ery similar to both the dusky and the Dobson shrews in sum- 

 mer pelage. Their small size, however, usually serves to identify 

 them in the field, but their habits apparently do- not differ much 

 from those of the other two species. In 1895 Howell and I col- 

 lected three specimens at St. JMary Lake on the same ground with a 

 larger series of the dusky shrew, and no difference in the habits of 

 the two could be discovered. Another specimen collected at Mc- 

 Donald Lake and others in country surrounding the park would 

 indicate a distribution over the whole park area in suitable situa- 

 tions. Generally they are forest dwellers, but may be found in 

 meadows or along the streams and out in the prairie and Plains 

 country, and while so ininute as rarely to be noticed, they are prob- 

 ably much more common than is generally supposed. 



Order CHIROPTERA: Winged Mammals. 



Family VESPERTILIONID^: Bats. 



Long-legged Bat: Myotis lucifugus longicrus (True). — A small 

 quick-flying brownish bat seen commonly about the hotel at Lake 

 McDonald on still evenings in August was probably of this species, 



which Howell and I 

 found abundant a t 

 Flathead Lake in 1895 

 and of which we col- 

 lected a large series of 

 specimens. Xone were 

 collected in the park, 

 as they were seen only 

 while flying about the 

 hotels. Evidently they 

 had made their homes 

 in dark corners and 

 crevices of the build- 

 ings, from which they 

 emerged at dusk to 

 begin their evening 

 flight in pursuit of winged insects. They circled rapidly about 

 the buildings, under the piazzas, and occasionally through the open 

 doors, and were seen also along the lake shore where they often 

 dipped down to the surface of the water to drink. Thev are so 

 strictly nocturnal that it is difficult to secure specimens, except by 



IS. — No. 1, brown bat ; No. 2, long-k'gged 

 (Pliotographed from Diuseum specimens.) 



