Grinnell: A Synopsis of the Bats of California 
1918] 329 
No. Sex Locality Date Collector 
31177 Biol. Surv. gad. Tulare Co.: Three Rivers Sept. 16,1891 A. K. Fisher 
16670 Q ad. San Luis Obispo Co.: Apr. 22,1912 J. Grinnell 
Cuyama Valley 
54602 Biol. Surv. Santa Barbara Co.: May 20,1893 H.K. Chamberlain 
Santa Barbara 
30729 Biol. Surv. @Qad. Kern Co.: Bakersfield July 17,1891 V. Bailey 
6958 gad. Los Angeles Co.: Glendora Dec. 10,1903 W. 8. Wood 
187714 Nat. Mus. dad. Los Angeles Co.: Alhambra Dec. 28,1880 E. C. Thurber 
Coll. F. Stephens @ ad. San Bernardino Co.: May 15,1903 F. Stephens 
Warren’s Ranch 
Stanford Univ. gad. Riverside Co.: San Jacinto Noy. 15,1893 E. Hyatt 
18794 dad. San Diego Co.: Escondido Oct. 8,1912 J. Dixon 
2515 Coll. F. dad. San Diego Co.: Witch May 25,1895 F. Stephens 
Stephens Creek 
62870 Nat. Mus. San Diego Co.: Witch June 19,1895 A. W. Anthony 
Creek 
716 Coll. F. Gad. San Diego Co.: Santa Aug. 15,1896 EF. Stephens 
Stephens Ysabel 
60533 Nat.Mus. dad. San Diego Co.: Santa June 15,1892 F. Stephens 
Ysabel 
Another (no. 6958) was found hanging in an orange tree at Glendora, 
Los Angeles County, December 10, 1903. The female red bat (no. 
21488) secured by Adrey Borell at Fresno, April 3, was found hang- 
ing in a mulberry tree in company with ‘‘many’’ more of its kind and 
one hoary bat, which was also captured. 
In some portions of its general range the red bat is migratory, 
while in others it is said to hibernate in vast numbers in caves. The 
latter report needs to be verified. This subject is treated more fully 
under the heading Migration, on page 282. 
In most bats the number of mammae is two, but in the bats of the 
genus Nycteris the number is four. This fact might lead to the 
inference that in this genus there is a greater number of young than 
in other genera. Observations made by Lyon (1903, pp. 425-426) 
and Ward (1905, p. 20) establish the fact that as many as four young 
oceur at a single birth. Lyon records the capture at Washington, 
D. C., of a female eastern red bat weighing 11 grams. Clinging to 
her nipples were four young whose combined weights were 12.7 
grams. Combining his own information with that given by Lyon, 
Ward gives the following summary of observations upon the number 
of young clinging to, or embryos found in, adult females of the 
genus Nycteris: two with one, two with two, three with three, two 
with four. 
