Murray 1949 Macrotus californicus May 20 1 mi E San Antonio, Baja California (cont.) A number of the bats flew out of another entrance at road level and into the one where we were. May 21 Buena Vista, 25 ft, 23°38'N, 109°41'W, Baja Calif. We caught 3 which flew into one small room of the schoolhouse around 9 PM, each one singly. May 22 Cerro Agua Amarga, 4 mi SE Buena Vista 23°36'N, 109°37'W Looked for caves on this hill of sandstone and sedimentary rock. One large cave contained about 300 bats, all Macrotus but 1 Leptonycteris. We kept 18♂, 12♀ as skulls only. There were several other caves, one of which had a few Macrotus. (See journal) May 24 Las Cuevas. Found a few in a large cave washed out of a sandstone cliff. There were thousands of Myotis velifer hanging on the sides and the roof at the back. Just a few Macrotus were there and all hunk together, though surrounded by Myotis. Also in the cave was Natalus mexicanus. Nearly was a still larger cave which had many Macrotus in the rear and apparently nothing else. (See journal)