C. Koford 1 Glossophaga soricina 5 April 1957 Ft. San Lorenzo Cnal Zone In 8x8' fairly dark room of fort I saw 2 hanging from ceiling & captured one (071923). Room had one doorway & a small window. In sea cave at foot cliffs at NW side found 50+, many carrying large juvenes. One juv. 6 grms., forearm 35 1/2, well formed body; 07, One juv. 2 grms., forearm 2 1/4, half formed body. Ad. ♀ 10 grms., lactating, mps florid 3 wide x 2 1/4 high; with expressed? Ad. ♀ 10 grms., forearm 35 1/2; mps slight projm., 2 1/2 wide x 1 1/4 high, vag. slightly projm.; 0 embryos but one ovary had enlarged bloodvessels. Ad. ♀ 16 grms., 1 emb. C-R 27 (weighing 3.3 grms, forearm (8) = ♀ 1924CBK ↑ [auto number] [illegible] a ploc.]? Ad. ♂ 10 grms., forearm 35 1/2, testis 4 1/2 x 4, scrotal segment = ♂ 1925CBK Carollia perspicillata 3x as numerous in this cave, also breeding. 1 May 1957 Many imm. in two horizontal metal pipes 10' diam. tunnels at Core Drilling warehouse, but only about 1/10 of Carollia population. Data on captured: ♀ Imm. frm. 37, 10 grms. ♂ Imm. frm. 36, 10 grms, testis 2 mm. ♀ Imm. frm. 35, 7 1/2 grs. ♀ Imm. frm. 36, 9 grs. ♀ Imm. frm. 34, 7grms. Probably adults too active for capture, these taken hanging overhead or sides of O tunnel. 2 May 1957 Chilibrillo Caves, Panama Fairly common scattered in caves near Carollia perspicillata