Greene, H. 1987 15 June (continued) a rough spiral beginning at the pallet, while Joanne stayed put denying the snake's exit. W/in 5 minutes she found the snake, almost hidden under ferns a few cms high! It is 1/2 m N. of the pallet, in a tight sleeping coil. Judging from the size of the coil (~25 cm) and it's color (tan, not red of juveniles) I guess it to be ~1.3 m. Next we entered Plot 1 (nearby) w/ Diana Liebemann to look for a large boa she saw last week, and were soon thoroughly lost. Eventually emerged in the Sendero Occidental (we had entered on the Sendero Experimental Sur) 30-45 min later. No snakes. It rained very hard from ~1830 - 2030 hrs, after which I walked the new Sendero Cartanana, a boardwalk through a swamp in the Ecological Reserve. Moderate number of Hyla straccathi and other frogs calling. 16 June Relocated Lachesis muta in same place as yesterday. The site is a few tens of meters from a plastic lecho at ~530 SES, on a heading of ~210° (~5). Snake is coiled in some place, w/ head down and facing 180° (S). Jerked once when I disturbed a twig nearby. This was at 0808 hrs. Next walked to station, through the Ecol. Res. swamps, out SOC and