Koford, c. 1967 2 5 specimen Catalog Peru 1967 11 July 1967 1 Km. N., 12 Km. E. of Pariacoto, Dpto. Ancash, Peru. 8500' [? elevation] elev. 3049 lact. + irsorbng Akodon b. 174-76-20-14, 30 gms. ♀v.imp., comb C-R 23, Under shrub on dry N. slope. Also discarded: Phyllotis darwini minm., mts. 10 gms., 10, 18, 22 gms., and ad at 30 gms. t. 4 mm. Akodon darwinii ad.♀uv. 3 ut. sacs, + 11 gm. ♀ minm. [by road up valley] 9000 ft. 12 July 1 Km. N., 14 Km. E. of Pariacoto, Dpto. Ancash, Peru. -0500' 3050 ∅ t. 3 mm. small mouse, long tail. 162-86-20-15, 14 gms. Mod. damp banks under 3' brush 20' from stream. 3051 ∅ t. 3. Akodon boliviensis 159-70-20-14, 22 gms. Under bush by stream. Discarded ♀ 21 gms. 3052 ∅ 4 umb. C-R 16 mm., Phyllotis d. 200-108-25-20, 379 ms. Base ½ dead Cernea and fork tangle on mod. dry slope; rock w/i 5 yds. Discarded ∅ 36 gms. t. 9, ♀ 41 gms. lact., ♀ 26 gms. minm. 14 July 5 Km. NE of Pacasmayo, Dpto. La Libertad, Peru. 200 ft. on road, 1093 14x25 mm., ½ in c. 3053 ∅ t. 5 Caprimulgus longirostris. 33 gms., no fat. dead Nest nearby fled ground w. stick 10' from thorn bush fence. 3054 ∅ lact.tiss, vtht.1mm. diam Akodon boliviensis 166-70-20-16 26 gms. manguito tree Rose grew thorny brush within bush fence on sandy flat ground w/3 3 15 July 2 Km SE of Morrope, Dpto. Lambayeque, Peru. 100'. bone 3055 ∅ t. 8, pale mouse 149-76-19-16, 16 g. Under brush (Capparis?) in fence row, sandy plain, Prosopis dominant. 3056 ∅ t. 8 larger mouse 216-117-26-18, 30 g. Elaenia albiceps modesto 3057 ∅ t. 2 Cupidomay 12 gms., no fat. On Prosopis 16 July 10 Km. E. of Piura, Dpto. Piura, Peru. 300 ft. In Prosopis in 3058 ∅ t. 2 Synallax sictothorax maculato 11 gms., no fat. Sandy desert. 6 Km. N. of Motupe, Dpto. Lambayeque, Peru. 500 ft. skull ¼ clear. 3059 ∅ t. 2 naggia Cyanocorax mystacalis 161 gms., no fat. One of each in loose flesh on roadside 30' Prosopis.