PROCEEDINGS OF THE CALIFORNIA ACADEMY OF SCIENCES FOURTH SERIES Vol. XXX, No. 10, pp. 207-210. December 31, 1964 BATS FROM ISLANDS IN THE GULF OF CALIFORNIA BY ROBERT T. ORR Curator of Birds and Mammals California Academy of Sciences and RICHARD C. BANKS Curator of Birds and Mammals San Diego Natural History Museum The Gulf of California is rich in islands, a number of which are inhab-ited by land mammals. Fifteen species and 39 subspecies of insular terres-trial mammals are currently recognized as occurring here. Records for aerial mammals from these islands, nevertheless, are exceedingly few, except for Pizonyx vivesi. Through the generosity of the Belvedere Scientific Fund of San Francis-co, Mr. Roy E. Marquardt of Van Nuys, California, and Mr. Richard Adcock of LaPaz, Baja California, Mexico, the authors along with nine other scientists had an opportunity from June 20 to July 1, 1964, to visit a number of islands situated in the Gulf of California between Loreto and LaPaz. Mr. Adcock pro-vided his boat, the Marisla, for transportation. Several new insular records for bats were secured on this trip, which induced us to summarize briefly the in-formation available to date on the distribution of members of the order Chirop-
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