380 University of California Publications in Zoology [Vol. 10 



On both dates all the bats when found were cold to the touch, 

 and were apparently numb, being incapable of any but very slow 

 movements. Within a few minutes, however, after being taken 

 into the outside warmth, they became very active and squeaked 

 gratingly. A curious position was that occupied by the ears 

 when the bats were at roost. Although this was a species with 

 relatively enormous ears, these structures were scarcely visible 

 when the animals as first found hung againsl the rock surfaces 

 head down. Upon close examination, the cars of the inverted 

 pendant bat were found to be folded against the sides close to 

 the body and almost completely hidden by the wings, which were 

 held together in front, that is. against the rock. This means that 

 the pinna was actually bent over sharply, a number of wrinkles 

 resulting, but apparently in no degree incapacitating the conch 

 from springing hack into its wonted posture when released. 



Myotis lucifugus longicrus (True) 

 Long-legged Bat 



A female adult mo. 1306) from Cahczon. 17(>0 feet. May l:i. 

 This occurrence is low. zonally. for the species, but the early 

 date may indicate a migrant. Three adult females (nos. 2041- 

 2043), Santa Rosa Peak at 7500 feet. June 30. These were ob- 

 tained in the vicinity of a spring, at late dusk, where they came 

 to drink. There was a series of pools in the rocky bed of a 

 s eep ravine. These provided an open approach from down the 

 canon, a bat flying directly to a pool, dipping to the surface of the 

 water and hovering for an instant, leaving a slight ripple. One 

 was caught in a butterfly net as it dipped to drink, the others 

 were shot above open ground below the pools. One of the bats 

 contained a foetus. 



This species is usually found in summer in the mountains 

 of southern California, in the Transition zone. The station on 

 Santa Rosa Peak was in this zone. 



Myotis yumanensis yumanensis (H. Allen) 

 Yuma Bat 

 Taken by us but once: male adult (no. f*-'!74), Hemet Lake, 

 4400 feet, August 20; caught in a bunk house. This specimen 



