C. Koford 1956/7 Corollia perspicillata January 2, 1957 Barro Colorado Island, C. Z. Took 2 dry 8:30 p.m. in nets near W. end of New Lab. These lots must have been among shrubs & within 5 feet of ground. ♂, testis about 5 mm. long, forearm 4.4, marked by clipping & two #1 ///X 4 min., forearm 4.3, clipped & two #2. 25 January 1957 One taken in mist net near 1952 Lab. ♂, 15 gms., testis 6 x 4 mm., penis slightly segmented. Not saved. 16 February 1957 Two taken in mist net near 1952 Lab. ♀, forearm 4 3/4, wt. 17 gms., vulva & anus nod. pigmented, nipple unpigmented and 1/2 mm. long ~ ; emb. C-R 8 mm.; ov. 1 1/2 x 2 mm.; 6 ± hair-like worms on or in embryonic membrane; 12 ± worms in abd. cavity, loose; many pinprick around anus and vulva, & when squeezed white grease oozes out in "S" loops. On the ♂, forearm 4.3, 17 gms., vag. & anus slight pigmented; nipple law ~ and not pigmented; no emb. but uterus enlarged & yellowish; 5 ± hair-like worms in abd. cavity; 2 flies in fur. I sent abd. worms to Dr. M. Vogt, UCLA. 31 March 1967 9 p.m., one in net at Bk O. No emb. but see yellow follicle in L. ovary. Vulva nod. pigmented. Nipple pigmented but 1/2 mm. long & wide only. Wt. 18 mm. Tot. length 63 mm. Forearm 4.2 mm. 5 April 1957 at Ft. San Lorenzo I found a group of 3 ♀♀ 1 ♂ in old date tunnel on S. side of highest level. ♂♀ pregnant. One more escaped. All are bunch. In the Cave at below cliffs at N.W. side off foot there was