2 km E Trecallo 8,000 ft., Dept of Huaraz July 9 4589 ♂ Phyllotis darwinii (21) x (75) x 26 x 28 48 g Tildale, sv/18 strong green 4590 ♂ " " 228 x 124 x 26 x 25 35 g. 76- white 4591 ♀ " " 200 x 116 x 26 x 24½ 23 g 4592 ♀ " " 257 x 141 x 26 x 28 42 g. 3 end. 4593 ♀ " " 172 x 89 x 21 x 21 16½ g w/end 4594 " " caninus 193x 108 x 22 x 25 18g, 4595 ♀ " "? (97) x 109 x 24 x 24 19½ g. w/end. 10 km SSE Pisco, 200 ft. Dept of Ica 4596 ♀ Phyllotis darwinii 228 x (25 x 26 x 27 32g. active 4597 ♂ " " - x 90 x 23 x 24 4-- 10 km E Arequipa, 10,600 ft., Dept of Arequipa 4598 ♂ ♀ abscond 146 x 66 x 21 x 14 17g w/end. 4599 ♂ Phyllotis darwinii 206 x 110 x 26 x 25 36 g Tq dark 4600 ♂ " " 242 x 121 x 25 x 26 50 g. T10 sv/17 4601 ♂ " " 241x 123 x 26 x 25 49 g. T10 sv/18 4602 ♀ " " 203x 105 x 25 x 23 25 g. 3 end & left 4603 ♀ " " 188 x 94 x 24 x 22 23 g. w/end. Rio Huancares, 13,100 ft., Dept of Cuzco July 7-17 4604 ♂ Akodon boliviensis 173x 69 x 22 x 14 25g . sv/ small 4605 ♀ " " 135 x 55 x 2(½ x 12 14 g. 4606 ♂ Calomys dominula - x - x 17 x 17 13g sv/10 July 18 4607 ♂ Pl. ozioza 198x 105 x 26 x 21 23 g . T3 sv/0 4608 ♀ adon pubii 181x 83 x 24 x 19 25g, w/end July 19 4609 ? Zorodendrus colomus 23 g. gooda not in tb