Pearson - 1993 12 YPF filling station, across the road from the new water filtration plant (under construction). Locality called "meadow south of Cerro Runge, 3110 ft." Anita thought she heard a Ctenomys sociabilis at Pampa Quemada. At 5 pm the 22 meadow traps had 2 Abro longipilis (exported and released). Then we set 5 steel traps at "old" tuco burrows at Pampa Quemada. Then drove on to the meadow on the road to Colonia Suiza and at 7 p.m. set traps around the meadow and bushes. When we left at 9 p.m. (not yet dark) we already had caught 4 olivaceus. 24 November.- Clear; minimum 50. Nothing in the 5 tuco traps at Pampa Quemada; picked them up. At "road to Colonia Suiza, 15 km W Bariloche" as follows at 8 a.m.: Peg 35 large Shermans: 1 olivaceus, 3 Oryzomys, 1 longipilis. Anita: 28 Shermans and 11 Museum Specials, and 1 repeating trap: 1 juv. Auliscomys, 2 Oryzomys (1 in the repeater trap), 2 longipilis. OP: 6 large Shermans, 16 small shermans, 24 MS: 6 Oryzomys (5 of them from MS), 5 longipilis (3 of them from MS), Many of the Oryzomys were from under rosa mosqueta at the edge of green grass picnic areas. At 10 picked up the Cerro Runge 22 traps: 5 longipilis, 1 olivaceus, 1 Oryzomys. Two of the longipilis were at the site where the repeating trap had been, and they were babies, only about 15 grams. Totals: at Colonia Suiza: 124 traps, 21 mice. at Cerro Runge meadow: 22 traps- 7 mice. At 5:00 p.m.put 22 big Shermans and 22 Museum Specials alternating on the shoulder of Cerro Otto above the YPF and the new water plant. A lot of motorcycle trails in the dirt. The vegetation at the summit is rather steppe but mixed with amancay, cipres, mutisia, some minder's lettuce, radal. Considerable palo pichi, some Berberis, Colletia, Acaena, Adesmia. All day sunny, not windy. 25 November- Sunny, minimum 50. Traps on the shoulder of Cerro Otto had only 2 mice: one an Ako xantho clearly xantho, and one a short-tailed Eligmodontia. The xantho was under a cipres next to a Colletia. Then drove to 10 km south of Comallo. The mima mounds are covered with tall mustard in flower, so they are not at all impressive. The mustard does seem to prefer the mima mounds. I put 6 Mueum Specials along the road on a rocky slope. Also 15 big