E. Heske 1980 Journal 3.9 mi NE Bochil to mi S of Rayon, Chiapas, Mex. december, cont. 12 Peromyscus (both boyleri + oaxacensis) on his forest lines. Decided to drive awhile before breakfast since weather was so bad. Today has been absolutely the pits: pants ripped, didn't catch many mice, cut myself on a trap, my stove broke while cooking breakfast and is unreairable, sleeping bag + tent are wet, car sounds like brakes about worn out, and the tip of my rapidograph just broke off, not to mention that my head lamp only works when it feels like it. We stopped at a roadside pull-out this morning and skinned/ took tissues on 12 Peromyscus, 1 Reithrodon tomus, and 3 Tylomys (see D.S. Rogers' notes). Drove on to Rayon. Surrounding area very heavily used agriculturally + for cattle. Not many stands of trees left. We stopped, however, at a ravine with a stream that had some dense forest around it. Duke set 40 traps near the stream, I hiked up a long steep trail of mud to set 40 more near the ridge where it looked like more trees. Not overly optimistic: habitat is scattered mature broadleaf trees with many smaller trees + vines mixed between them. Understory very dense - would stop a charging rhino. As it is still foggy, everything is wet, ground is very slick. Hard to climb trail - keep slipping back down. So this is the tropics. Camping at a roadside