270 University of California Publications in Zoology  [Vou.17 
Natural History—Bats, like birds, have their chosen feeding 
ranges and the range of one species supplements that of another 
instead of duplicating it. When encamped near the Russian River 
in Sonoma County in 1913, I had opportunity to study the feeding 
@ MYOTIS LONGICRUS LONGICRUS 
4 MYOTIS LONGICRUS INTERIOR 
DISTRIBUTION MAP 
MUSEUM OF VERTEBRATE ZOOLOGY 
UNIVERSITY OF CALIFORNIA 
qe ee 
Fig. I. Map showing stations of occurrence in California of Myotis longicrus 
longicrus and Myotis longicrus interior, as established by specimens examined by 
the author. 
habits of four species of bats, among them Myotis longicrus longicrus. 
This bat first appeared at 7:45 p.m. (June 11), twenty minutes after 
sunset, and none was seen after 8:30- p.m. Individuals flew in and 
out among the tents and young redwoods of the resort at a height of 
