288 University of California Publications in Zoology [Vou.17 
The breeding season of M. c. quercinus is indicated by the follow- 
ing data, taken from specimens in the Museum of Vertebrate Zoology. 
No. 6675, female with one embryo taken July 3, 1906, on the South 
Fork of the Santa Ana River, San Bernardino Mountains, 6200 feet 
altitude; no. 6939, female with one embryo, taken July 8, 1905, at 
Seven Oaks, San Bernardino Mountains, 5000 feet altitude. 
Myotis californicus pallidus Stephens 
| Little Pallid Bat 
Myotis californicus, Miller (1897b, pp. 69-72), part. Specimens listed 
from localities in southeastern California. 
Myotis californicus pallidus Stephens (1900, p. 153). Original deseription ; 
type locality, Vallecito, San Diego County, California. 
Myotis californicus pallidus, Elliot (1901, p. 405). Diagnosis. 
Myotis californicus pallidus, Miller and Rehn (1901, p. 256). Type 
locality. 
Myotis californicus pallidus, Elliot (1904a, p. 319). Record stations for 
California: Mesquite Valley and Panamint Mountains, Inyo County. 
Myotis californicus pallidus, Elliot (1904b, p. 579). Geographic distri- 
bution; general characters. 
Myotis californicus pallidus, Elliot (1905, p. 477). Geographic distri- 
bution. 
Myotis californicus pallidus, Stephens (1906, pp. 266-267). Description; 
distribution. 
Myotis californicus pallidus, Elliot (1907, p. 503). Repeated records. . 
Myotis californicus pallidus, Lyon and Osgood (1909, p. 291). Nature and 
location of type. 
Myotis californicus pallidus, Miller (1912, p. 57). Nominal. 
Myotis californicus pallidus, J. Grinnell (1913b, pp. 277-278). Range 
in California. 
Myotis californicus pallidus, J. Grinnell (1914, pp. 265-266). Occurrence 
on the Colorado River; habits. 
Diagnosis —Similar to Myotis californicus californicus and M. c. 
quercinus, but averaging slightly smaller, with skull smaller (pl. 21, 
fig. 25), and color lighter; general tone of back light buff. 
Description: Color—A dry skin of Myotis californicus pallidus 
(no. 7350, Mus. Vert. Zool.) taken by F’. Stephens at the type locality, 
Vallecito, San Diego County, presents the following coloration: Basal 
3 millimeters of fur on back, chaetura black, followed by a band of 
cartridge buff 1 millimeter wide; terminal 3 millimeters, light buff. 
On dorsal surface of interfemoral membrane the hairs lack the black 
bases. Fur on ventral surface pale cartridge buff, with blackish bases 
of hairs showing plainly. Ears, wings and interfemoral membrane 
vary in color from drab to hair brown. 
Measurements.—A series of five males of M. c. pallidus averages 
in millimeters as follows: total length, 81.4 (extremes, 77.0-85.0) ; 
tail vertebrae, 40.6 (38.0-44.0); tibia, 13.4 (13.0-14.1); foot, 7.2 
