THE MAMMALS OF MOUNT MAZAMA. 
229 
region and may be easily distinguished from the Water Shrew by its 
black belly. 
Alpine Water Shrew. Sorex (Neosorex) navigator^ Baird. 
Common about the little springs and rapid mountain streams. 
Several were secured at Crater Lake, and along the upper part of 
Anna Creek, from its source down to Pole Creek. One was taken 
as low down as Fort Creek, near Fort Klamath, by Mr. Preble. All 
were caught at the very edge of the water, some in woods, others in 
marshes. One Mr. Bailey caught alive did not attempt to bite. 
The species may be distinguished from Bendire's Water Shrew at a 
glance by its white belly. 
Big- Footed Bat. Vespertilio yumanensis^ H. Allen. 
Klamath Indian name, En-che-cha. 
A small bat of the genus Vespertilio sent me from Fort Klamath 
in 1883 by Major Bendire has been identified by Mr. Gerrit S. 
Miller, Jr. as a dark form of V. yumanensis. 
Small Brown Bat. Vespertilio lucifugus longicrus^ True. 
On the evening of August 25 Mr. Bailey shot one of these 
bats at Upper Sink Creek, near the east base of the range. 
Several small bats were seen at the rim of Crater Lake, but un- 
fortunately we were not able to secure a specimen. 
SiLVER-H AIRED Bat. Lasiotiycteris noctivagatis^ (Le Conte). 
When camped on Upper Sink Creek, the night of August 25, I 
shot a silver-haired bat as it was flying overhead in the short twilight. 
It is odd that the three bats killed at this place the same evening 
belong to three different genera (Lasionycteris noctivagans, Ves- 
pertilio lucifugus longicrusy and Eptesicus fnscus. ) 
Large Brown Bat. Eptesicus fuscus^ (Palisot de Beauvois). 
Common about the base of the mountain and ranging up the 
canyon of Anna Creek nearly as far as Pole Creek, where several 
were shot by Mr. Preble. The species is common at Fort Klamath 
and one was killed on Upper Sink Creek. 
