Quast 1948 Myotis yumanensis I April 30 Mission San Ignacio 500 ft Baja California. Two males caught in stone-walled and roofed room in building attached to west end of building. They were caught at 10:30 and 11:00 P.M. yesterday, and were found hanging singly from the roof. Specimens were prepared by Dr. Benson. 3:00 P.M. 15 caught this afternoon with land nets in high stone-roofed room east of mission proper. The ceiling is of brick and crumbling cement and the bats were in groups hidden in the crevices between the bricks. Shot fired from 22 pistol disturbed a few of them, but the remainder had to be poked out with a long stick. The specimens were cataloged by Dr. Benson. 9:00 P.M. Have just inspected room in which two males were captured last night. None were seen although it was occupied by three Macrotus californicus. Possibly, they Myotis were so disturbed by our raiding a nearby roost (above paragraph) about 100 yards distant that they did not go to their accustomed place after feeding. May 2 Mulge 25+ ft Baja California, About 40 caught yesterday in crevice between 2 x 12's supporting porch in back of government building here. Of 20 sel-