E. Heske 1980 Journal Cerro Mozotol, Chiapas, Mexico dec. cont. yesterday. The latter had been called a "P. boylei" but on second glance proved to be another Reithrodonomys. He also caught one P. boylei on a different line. I was annoyed because it appeared that at least two of my traps on the lower line had been visited but not sprung. Will make sure all triggers set better tonight. Duke cought the Heteromys in an area with mossy logs, also, so we plan to concentrate our efforts in that habitat type tonight. While transferring mice to older, unnumbered traps for holding, Duke pointed out that many of the P. guatemalensis had a buffy breast, while others had only a buffy wash to the breast. Both types were cought in all areas. The former had more buff in the sides, as well, and the antipantar side of the feet had dark hairs extending further distally. A few juvenals had no buff at all. Spent part of the morning repacking gear, etc., while Duke put up the two woodrats and a P. boylei from site B. Tissue samples were taken. Did some birding - but ^see Dave Good's notes for bird list of area. only briefly. Saw two grayish squirrels (Sciurus griseoflavus?). David saw a deer (Odocoileus virginianus). Drove down to site B to check traps left there. I had no further captures; Duke caught two more P. boylei; David also got zilched. Returned