C. Koford 12 Journal 1 July 1970 Lake Corisata, Ooto. Prov. Peru. for toos - toos [caught one by 5 p.m., 2 more by dark]. On hillslope we set about 40 live traps and 35 may haps among red boulders, tola, cactus, festuca clumps - some yucca, pyrophyllum, some sandy ground. Old mouse tracks common. But cotton as well as bait in live traps. We shot 2 viscacha in rocks & saw many others, and many toobs. Sunset about 1730. Cold evening. 2 July 1970. Min. Temp. 9° F. Sunrise 0615. Saw a Stumps half out of burrow, digging, at 0745. Also an Ak. Phyllostetii sitting ludovici standing up by his burrow near toos burrows on flat sandy ground. Took 2 more Stumps by 0930, with most traps taken in. Our live traps held 0 - snaps (toxicine?) took 2 P. danvisi, 1 A. jelskii, 1 Ak. ludovician. Again, live traps seem unproductive in cold. / Cold - milk frozen in tent, & coffee, water, eggs. Toos survived, wrapped in lunlop sacks (but maisy struggle in wire cages all night). Overcast day. We left traps out until midday, but no mice. Departed and drove back to Santo Rosa, Morocuy, and 5 mi. N. where we camped near rough red boulders and cliffs. Set about 20 snap traps near rocks, on mod. slopes w. scattered tola, bunchgrass. 3 July 1970. Cold night; min. 12° F. Traps took: Akodon bolipreli: (spec) and 6 P. danvisi (disarded). [Drove w N., intending to cut over to Juli, thence 5. to mrs. Nuvarollari, but missed cutoff. So went via llave, then Juli. Thence, instead of direct to N., skirted shoreline to Pometa. Some shore small boulders, other muddy. Huge snowy rats w. E. (Pellimani ?). Cattle and sheep working in a red-filled lobe, feeding on water plants. We saw a gallinule w. bright red frontal shield. Numbers