Heene, Ht. 1989 July 7 (continued) Jaura (cleaning woman) showed me a Corallus annulatus coiled tightly between a rafter and the eve of the porch in front of the main AC laboratory. When I horked it down the snake tried to crawl away, fairly rapidly for a boid, but when I swung it between my legs it bit my pants and continued trying to bite while I restrained it behind the head. Snake is very chocolate brown, in contrast to the two brick red juveniles and large pale sandy adult I've seen previously. The boa (240g, 100S + 195, ??) was in a compact, circular coil w/head over the edge, facing out from the building - thus in a more or less typical Corallus posture, except in an approximately horizontal plane perhaps caused by its size relative to the beam on which it was resting. David and Billie Hardy arrived before noon. After dinner, ~2000-2200, Dave and I walked to CES 700 and back, down to the Sura Trail, and over to the Contarara boardwalk. At ~20:00h we located a young adult Lachesis muta at Sura 175 m, coiled about on the S side of the trail - presumably a snake Nancy Greig saw recently at ~150 m on this trail. The snake was in the open cleared border but near forest edge, facing the boardwalk and I think w/in striking distance. It was alert - tongue flicked and oriented w/ head when I walked nearby or set off a camera flash. I was able to hook it into a garbage can on first try w/out difficulty.