1913] Grinnell-Swarth: Birds and Mammals of San Jacinto 381 



is preserved as an alcoholic, but the skull has been removed and 

 cleaned. 



Myotis orinomus Elliot 

 La Grulla Brown Bat 



Five specimens secured : nos. 2044-2047, at Garnet Queen 

 Mine, 6000 feet, June 25 and 26; no. 2248, Hemet Lake, 4400 

 feet, August 9. Both localities are in high Upper Sonoran on the 

 Pacific Slope ; in both places some transition elements were pres- 

 ent, and it is possible though not probable that this bat belongs 

 to Transition. 



Upon the basis of our San Jacinto material, this species was 

 first credited to the mammal fauna of the state (see Grinned and 

 Swarth, 1012b. p. 137). 



Myotis californicus californicus (Audubon and Bachman) 

 California Little Brown Bat 



Small bats were observed at several of the stations on the 

 Pacific side of the mountains. Our inability to distinguish the 

 species of Myotis out of hand necessitates the ignoring of all oc- 

 currences except where specimens were actually obtained. 



Of californicus only two examples were taken: adult male 

 (no. 1894), Kenworthy, 4500 feet, June 8; female juvenal (no. 

 2707), Schain's Ranch, 4900 feet, July 14. Both of these locali- 

 ties are at the extreme upper edge of Upper Sonoran. 



Eptesicus fuscus fuscus (Beauvois) 

 Big Brown Bat 

 Bats of this species were obtained as follows : Kenworthy. 

 4500 feet. May 24 and June 5, four (nos. 1864-1867) ; Tahquitz 

 Valley, 8000 feet, July 22, two (nos. 2152, 2153) ; Hemet Lake, 

 4400 feet. August 13 and 14, two (nos. 2246, 2247) ; Lower Palm 

 Canon, 800 feet, June 16, one (no. 9375). As elsewhere in south- 

 ern California this bat is most numerous in the high Upper 

 Sonoran and Transition zones, ranging highest of any member of 

 the order. Yet it was also found well down into Lower Sonoran, 

 though only along canons down which individuals may fly 

 nightly from roosting places higher up. Large bats presumed 



