e Koford 1957 Chiroptera - Gen'l January 3, 1956/7 Barro Colorado Is. Canal Zone jamaicensis, 5 Vampyressa noja, 1 Myotis liliifolium, and 1 caribaeus nocturnus. Left 7 and 9 p.m. Not near Allen Cr. House took 1 Myotis nigricans, 1 Molossus molossinus, 4 by morning; 1 Myotis lili- folium. Old net near Chapman House at edge clearing took 1 Carollia caribaeus in morning. Most large bats came into first net when we had fords squashed much - a regular rain of bats, many escaping net after bat- ting it becoming only slightly entangled. Holden net set from 2 eve near New Lab took 2 Carollia perspicillata (banded & released), 4 in a.m. took 1 Carollia costana (C.R.K. examination). All low over grass & Piper near shrubs. January 10, 1957 Took a few Saccopteryx from VT Big Tree for examination. Banded some released at Lab. January 12, 1957 McRoberti took 3 Saccopteryx + 5 Myotis- nigricans from Tower house. Banded & released some. Examined others. Caught a Natalus ? in hand net at SM 1/2 6:30pm. 24 January 1957 Took a small phyllostomid in mist net low in clearing near 1952 Lab. 13 February Took a Carollia + a glossophaga ? during night in net near edge clearing near 1952 Lab. Two other large nets yielded nothing. Notting much less productive in clearing than in October and November. 31 March 1957 I put one net across trail at Bk O. By 9 p.m. on Artibeus ? and a Carollia ?. In morning Saccopteryx liliifolium too. 5 April 1957 Visited Fort San Lorenzo & took 2 species of tads late in old chambers, + many bats (3 sp.) in sea cave under fort. With David Sommerville.