C. Koford 1952 48 Specimens June 27 Hcda. Calacala, 13000', 7 mi. S of Puting, Dpto. Pong Perc 1524 ♂ t.4 Phyllotis osilae 227-120-25-22, 35gms. Duri. 2 mm.-prgn.??; 33 gms. ♂ (test. 3 long). June 28 15 mi. E. Juliaca, 12500', Dpto. Pong Perc- 1525 ♂ test.2 Upucerthia dumetaria slight fat. 48gms. Low brush, sandy ground, near shore lake. 1526 - see p. 47 of catalog. July 3 Oconegue, 6 mi. N. Limbani, Dpto. Pong Perc- 1527 ♂ 6mm. Caprimulgus longirostris 40gms, On trail at night At least 2 others seen. t. Piculus ridollii 1528 ♂ 3mm. Centurus mod fat 98gms. green leafed tree next to river. 1529 ♂ test 1½ Ale. ? Serpophaga cinerea eith (t?) gray flycatcher, black wing+ crown. closer in near rushing clear river. 1530 ♂ t.1 Myiarchus tuberculifer 2gms, Shallowj. Trees + brush near riv. July 4 1532 ♂ L.11KC Lenoxys apicalis Dectomys mod fat 307-156-34-26 Damp vegetation under trees on E. side slope. 1533 ♂ t.4 Oryzomys longicaudatus? 18-123-24-12 Damp dark draw near stream, ferns. 1531 ♂ t.1 Coeligena targuate Orris brown - rufous neck - tubate out. tail feath. 8gms? green, yellow belly, yellow venting, olive dorsum 1534 ♂ test.1 Dendroica petechia? 13gms, Thy-Thlypopsis mekiensis pale gray belly. July 5 1535 ♂ t.4 Oryzomys hoggii?, 266-142-33-21, 56 gms. dark belly Rhodon aeracus? 1536 ♀ lact. Oryzomys 180-77-23-19; 33gms. Brush, damp hillside behind (E) of male station. 5 disc.