June 7 Punta Gasparina, 23°16'N, 110°09'W, 10±ft. Baja Calif. After putting up specimens, Dr. Benson, Fevis and I back-tracked to a cave which a nearby rancher told us about. This was back up the road about 5 miles, then down a wash called Arroyo de la Tenaya to Cerro del Elote. The hill faced the seashore and was heavily washed and cut on that side, into the solid granite rock. The cave was back about 100 feet from the water, with a great cut in the rocks at least 15 feet across and with cliffs 60 feet high leading into it. From where the roof began the cave extended back as a broad crack at a 70° angle roughly, and from 3 to 5 feet wide, 150 feet long and 30 ft. at the highest point. Toward the rear a mixture of sand and guano caused the floor to slope steeply upward. There were only about 8 or 10 Leptoncytis in it, and these hanging in a shallow crevic at the rear. They flew readily, some leaving and others flying around inside. Dr. Benson shot 2 and he and Fevis netted 1 each. Several flew around the rocks outside, trying to reenter. They often soared briefly. (See sp. acct.)