Greene, H. 1987 1 December I saw a Lepidolepharis xanthostigma crawling in (continued) leaves on the trail. 2 December Another sunny day, although fog at dawn. The ? Bothrops asper was still at Site 3 after breakfast. She was also there at mid-afternoon and after dark. Alejandro Solerano arrived this afternoon, and after dark we walked the Sendero Oriental out and back w/out seeing anything. Orlando Vargas brought me an Enulius selaterii he found DOR in La Guarin. At ~1900 h Rebecca Butterfield discovered a freshly dead juvenile B. asper (HW6 1701) on sidewalk by the Villa Esperanza, apparently stepped on unseen by someone. Alejandro and I killed and pickled the big B. asper I caught 29 November, because the Clarks preferred it not be released near the building or observator. 3 December Alejandro and I left before 0800 and walked out the CCC, Camino Central, Sendero Sur, and back on the Oldridge, arriving at the station ~1130 h. At 0828 h we caught a juvenile Mastigodryas melanonus (?300+100 mm, ?g) crawling off the trail into leaves - twisted about long axis, thrashed, and bit repeatedly. At 0900 h we found the Lachesis muta at CC 1800 in exactly the same place I saw it 26 November. Three people checked this spot on the 27th without seeing the snake, but I suspect it was there. It is a young f, 1260+123 mm, 950 g. Very calm until after we handled her, then quite brava. She crawled slowly w/ the body extended, head in a tight S-