a very small opening and by by sliding in feet first we were able to squeeze through. The first bats encountered were glossophaga. They were there in large numbers. Nos. 12057, and 12061 were taken. These little fellows hanged head down from the roof of the tunnel and were usually found separately and not in clumps as we frequently found Carolia. A few feet further back in the tunnel we found Glossophaga being replaced by Carolia. These genera were found more commonly than the others in the mine. The next genus seen was Phyllostomus. They were quite gregarious like Carolia, but their habits of clinging to the walls and bracing themselves by there forearms and trying to evade the light gave them a remarkable resemblance to vampires. There were perhaps 50 in the tunnel. Nos. 12058, 12060 12062, 12063, 12064, 12065, 12069, 12071, 12072, 12073, 12074, 12075, 12076, 12079, 12078, 12080, and 12081 were taken. Carolias, Nos. 12059, and 12079 were