Murray 1948 5 Macrotus californicus June 14 Palmar del Medio, 4mi ESE Pescadero, Baja Caly. This was a mine with a moderately long horizontal shaft about 6 feet high. Several bats were flying in the entrance. Working back to the end we found a small opening to the outside, through which most of the bats left, and a vertical shaft going down. Some tried to go back past us, flying straight and slowly. I went back toward the mouth later and found that several had re-entered. Twice more they returned after being chased out. We caught 22 altogether, of which 7♂ and 2♀ were released. June 22 8.3 mi N by road, Campole, Baja Caly. Found several in a shallow but high cave up on a lava hillside. Kept six.