1918 | Grinnell: A Synopsis of the Bats of California 273 
cannot at present be given. It has been collected in the arid Upper 
Sonoran, Transition, and lower Canadian zones, from Benton, Mono 
County, south to the Cuyamaca Mountains, in San Diego County. 
(See map, text-fig. I.) 
Specimens Examined.—The writer has examined 23 specimens 
from the following localities in California: Mono County: Benton, 1; 
Inyo County: Little Onion Valley, 3; Kearsarge Pass, 1; Tulare 
County: Monache Meadows, 1; Kern County: San Emigdio, 4; Los 
Angeles County: Pasadena, 2; San Bernardino County: San Bernar- 
dino Mts., 4 (Mus. Vert. Zool., 3; Acad. Nat. Sei. Phila., 1) ; Riverside 
County: Santa Rosa Mts., 3; base of San Jacinto Mts., near Cabe- 
zon, 1; San Diego County: Cuyamaea Mts., 3. 
Natural History.—I ean find nothing recorded concerning the 
natural history of this bat. 
Myotis yumanensis yumanensis (H. Allen) 
Yuma Bat 
Vespertilio ywmanensis H. Allen (1864, pp. 58-59, figs. 54-56). Original 
description; type loeality, Fort Yuma, Imperial County, California. 
Vespertilio Ywmanensis, Cooper (1868, p. 5). Distribution. 
V [espertilio]. macropus, Cooper (in Cronise, 1868, p. 442). Listed as oceur- 
ring in California. 
V [espertilio|]. Ywmanensis, Cooper (in Cronise, 1868, p. 442). Listed as 
oceurring in California. 
Myotis yuwmanensis, Miller (1897b, pp. 66-68), part. Description; dis- 
tribution; recorded from Keeler, Lone Pine, Owens Lake, ete. 
Myotis yumanensis, Elliot (1901, p. 403), part. Diagnosis; distribution. 
Myotis ywmanensis, Miller and Rehn (1901, p. 256). Type locality. 
Myotis yumanensis, Elliot (1904a, pp. 318-319), part. Occurrence in 
Argus Mountains. 
Myotis yumanensis, Elliot (1904b, pp. 576-577), part. Diagnosis; dis- 
tribution. 
Myotis yumanensis, Elliot (1905, p. 475), part. Distribution. 
Myotis ywmanensis, Stephens (1906, p. 267), part. Diagnosis; distri- 
bution. 
Myotis yumanensis, Elliot (1907, pp. 501-502), part. Localities of capture 
in California. 
Myotis yuwmanensis, Lyon and Osgood (1909, p. 291). Record of type. 
Myotis yuwmanensis yumanensis, Miller (1912, p. 56), part. Range. 
Myotis yumanensis yumanensis, J. Grinnell (1913b, pp. 276-277), part. 
Range in California. 
Diagnosis —Size rather small (total length 74 to 88 millimeters) ; 
calear distinet, considerably longer than free border of interfemoral 
membrane, and terminating in a well-marked lobule. Feet very 
