M.F. Smith 1993 JOURNAL Bariloché, Rio Negro Prov., Argentina somewhat intermediate morphologically. The cytochrome b sequence I have so far is almost identical between A. shiraei and A. panthorhineus collected near the intergrade region. We need information on the nuclear genome to help determine whether the two types differ in nuclear genes, perhaps with introgression of the mitochondrial genome from one type into the other. We also need a reference sample of A. panthorhineus from farther away to check the mitochondrial DNA sequence. In the late afternoon we drove out to a site 4.2 km E of Bariloché, which we will call Las Victorias. The area has been marked off into lots that are for sale. We set three trap lines in steppe habitat, trying especially to set in bunch grass, which should be habitat for 'shador' panthorhineus. Payne and Anita felt that the habitat turned out to be a bit moist for A. panthorhineus, but we'll see. We set about 100 Sherman traps baited with rolled oats and corn meal. We didn't set any of the snap traps because we won't have any liquid nitrogen until tomorrow, when we have an appointment to go to the Centro Atomico with Adrian Morreau to get liquid nitrogen.