Greene, H. 1989 July 8 Cool and cloudy, then sun after dawn. At 0615 hr the leptophis ahaetulla we saw last night in the swamp was not to be seen. Substantial rain starting by approx 8:30-0900, so we worked in the lab. Yesterday one of Dough Jevy's Earthwatch people perfectly described to me the color pattern of Pliocercus euryzonus (actually just placed in Urotheca by Savage & Grotter) and said he saw 2 on July 6, after dark at either end of the Cantarara swamp. From approx 1430-1600 hr Dave Hardy and I walked out the CES to LOC 450m, where Robert Marquis (U. Missouri - St. Louis) saw a large Bothrops nasutus this AM -- it had been on the path, then crawled onto an old fallen log. We failed to find it, but on the way out Dave spotted a B. nasutus that I walked over. It was a little snake (2014 20 mm, 8.3g) and coiled in dead center of the boardwalk, next to a leaf, and perpendicular to the trail. The snake was in a tight coil w/ head up on outer coil & neck in S; stomach empty. I was due to lift it into a bag w/ forceps w/out disturbing it, but when I tubed the snake for palpation it squirmed about its long axis, ejected a considerable quantity of clear liquid from its cloaca, and bit at the tube sides repeatedly. Dave Hardy and I walked through the Cantarara Swamp and out to CCC approx 700m from approx 2030-2200h, after I gave a talk to the OTS agroecology course. On the