C. Koford 3 Carollia perspicillata 5 April 1957 Ft. San Lorenzo Canal Zone Jm. Ø 16 gms., forearm 41, testis 3x2 mm. Gray fur. Jm. Ø 18 gms., forearm 42½, testis 6 x 4. " " Ad. Ø 21 gms. 44 test. 9x6, protruding externally; brown fur. Ad. Ø 1926 CSK - also large testes. This is same cave where P. Bleak found Micronycteris platycephala and Natalus micropus with Carollia. 17 April 1957 2 mi. N Summit, Canal Zone Visited Sandovallo Mine with Mr. Boucher. Hike up creek & branch from The Water Hole, about 1½ mi. Old mine machinery from 1920t. Tunnel 100' deep, horizontal, slight curve. Ceiling 6-7 ft. above solid floor, but only 4-5 ft. above surface loose mud and water (strong smell HzS). Hundreds of green sapote beans in water, + several large frogs (Leptodactylus pentad.). Rock walls rough. Starting 10' from entrance some Carollia hanging, + perhaps 500 in tunnel, mostly in clusters on ceiling. Some tiny young being carried by mother, but ØØ also present. Deep in cave a few Dirnis on ceiling and about 300 Lonchophylla aurita (?). Many parasitic flies on the bats (sent to Mrs. Thurman, nos. 5005 to 5007). Entrance of cave on hillslope under 60' high canopy. I examined specimens but kept none. Info on skins: Ø 19 gms - forearm 42 - test. 9x6. Testis scrotal, skin naked; penis near black. Ø 18½ - forearm 42 - t. 8x5, scrotal. Ø 18½ - forearm 44 - t. 8x5 Ø 18 - forearm 45 - t. 7x5 } penis black but ft. slight pigmented scrotum.