1913] Grinnell-Swarth: Birds and Mammals of San Jacinto 379 



in Tahquitz Valle.y and on the trail leading from there to Round 

 Valley; also on the summit of Santa Rosa Peak and around 

 Hemet Lake. The lowest jioints at which evidences of their pres- 

 ence were noted were on the desert slopes and base of the moun- 

 tains, at Banning and Snow Creek, the elevation of the latter 

 point being 1500 feet. These may be considered extreme east- 

 ward stations for the species, as moles are unknown from the 

 desert proper beyond. 



But two examples w r ere procured in the region under con- 

 sideration : female, no. 2089, in Strawberry Valley, 6000 feet, 

 July 15, and a female, no. 2231, on Thomas Mountain, 6800 feet, 

 August 19. The first was captured as a result of the collector's 

 seeing a slight movement of the earth at the end of a mole ridge, 

 the animal being impaled by a quick thrust of a pronged instru- 

 ment. The second was caught in a special mole trap. 



For the use of the name occult us for the mole of southern 

 California, see Grinnell and Swarth (1912a, p. 131). 



Corynorhinus macrotis pallescens Miller 

 Pallid Big-eared Bat 



Pound only in a mine tunnel at about 6500 feet altitude, on 

 the south face of Hemet Peak, and about two miles from Ken- 

 worthy. The hillside upon which the tunnel opened was Upper 

 Sonoran, but temperature conditions where the bats were roost- 

 ing were certainly altogether different from those outside, both 

 day and night. The tunnel was 600 feet long with a vertical shaft 

 at the end admitting air from above. A strong and, even at 

 midday, very cold draft descended the shaft and thence flowed 

 out through the tunnel. 



The bats were found by means of candle light, clinging singly 

 to the side walls of the tunnel, from within a few feet of the 

 entrance nearly to the end. Here seventeen Corynorhinus, the 

 only species of bat found in this locality, were obtained, on May 

 22 and June 5, twelve being preserved as skins with skulls (nos. 

 1882-1893) and five as alcoholics (nos. 9365-9369). There were 

 fifteen males and two females; one of the latter containing a 

 single large foetus. 



