ro 
1918] Grinnell: A Synopsis of the Bats of California 275 
through Owens Valley and through the San Joaquin and Sacramento 
valleys, at least as far as Oroville, Butte County. But this includes 
also the range of the next described subspecies. A recent examina- 
tion of the material in the Museum of Vertebrate Zoology showed the 
existence of a previously unnamed race, Myotis ywmanensis sociabilis 
MYOTIS YUMANENSIS YUMANENSIS 
MYOTIS YUMANENSIS SOCIABILIS | 
MYOTIS YUMANENSIS SATURATUS 
DISTRIBUTION MAP 
MUSEUM OF VERTEBRATE ZOOLOGY 
UNIVERSITY OF CALIFORNIA 
Fig. J. Map showing stations of occurrence in California of Myotis ywman- 
ensis yumanensis, Myotis ywmanensis sociabilis, and Myotis ywmanensis saturatus, 
as established by specimens examined by the author. 
(H. W. Grinnell, 1914, pp. 318-319), west of the desert divides, thus 
restricting the range of the typical subspecies, Myotis yumanensis 
yumanensis, to the arid Colorado and Mohave deserts and north 
through the Inyo region, probably altogether within the Lower 
Sonoran zone. (See map, text-fig. J.) 
