PLATE 18 
Fig. 13. Large brown bat (Hptesicus fuscus, no. 22084, ¢), X 0.62. Dorsal 
view of fresh specimen secured in Yosemite Valley, Mariposa County. Note 
the heavily-built forearm, tibia and foot, and the stout thumb. The bluntly 
rounded ears of this bat are somewhat longer than broad, a fact not apparent 
in the photograph. 
Fig. 14. Red bat (Nycteris borealis teliotis, no. 21516, 2), XK 0.55. Dorsal 
view of fresh specimen secured at Fresno. Note the small foot and ear, and 
the long interfermoral membrane, haired over the entire surface. The char- 
acter of the dorsal pelage is well shown in this photograph: the frost-like light 
tippings of the hairs, and the short dense fur on the head as compared with 
the longer hair on the back. 
Fig. 15. High Sierra bat (Myotis lucifugus altipetens, no. 23035, ¢), X 0.73. 
Dorsal view of fresh specimen taken at Vogelsang Lake, Mariposa County. 
Note the form of the ear (longer than broad and bluntly rounded at tip), 
the long slender thumb and the relatively long foot. 
Fig. 16. Dorsal view of fresh specimen of Merriam bat (Pipistrellus hesperus 
merriami, no. 22081, ¢), secured at Pleasant Valley, Mariposa County; X 0.81. 
This bat and the one shown in fig. 17, Myotis c. californicus, are of somewhat 
similar size, but it will be noted that the ears of californicus are of nearly the 
same tone of coloration as the back, whereas the ears of merriami are of a 
blackish shade, contrasting with the grayish tone of the back. The ear in mer- 
riami is seen to be shorter than in californicus. 
Fig. 17. Dorsal view of fresh specimen of little California bat (Myotis cali- 
fornicus californicus, no. 22078, g), secured at Pleasant Valley, Mariposa County. 
X 0.81. 
Fig. 18. Living adult female red bat (Nycteris borealis teliotis, no. 24179) 
with her three young; X 0.44. This bat was found at Stockton, San Joaquin 
County, July 12, 1915, clinging to the trunk of a tree one and one-half feet above 
the ground, with the young all attached to her. Her weight was found to be 
12.4 grams and the combined weights of the three young, 19.4 grams. 
