Murray 1949 Journal Apr 26. La Fortuna Mine, 2350 ft., 2 mi N Laguna Seca Chapala, Baja Calif. Most of their extent they were in total darkness. In blind tunnels the bats were pretty much at the back end. Where they get water is a question. The nearest we know of is many miles away. The Choeronycteris have very long, slender tongues, well adapted to getting pollen or nectar if that is really what they eat. The surrounding country is dry and rocky, with a sparse vegetation of stubby brush and a few cardons and cirios. The mine however is on a hillside, with also many agaves around. Saw a Callisaurus which was surprising- ly tame. We could hear guail in the distance. The highest temperature measured in the lowest tunnel was 72°. There were many indications of woodrat workings, extending even into the deepest parts of the mine. We got underway at 2 PM after putting up the bate. Crossed the bare Laguna Seca Chapala, a flat surface of dried mud, then entered an interesting area of dense vegetation including just about all the forms we have seen around here. There were many more ocotillos, and a little farther along the copals, palo verdes and many tall yuccas. All the familiar cactuses