Greene, H. 1990 July 12 Wendy and I checked the Cantarana Swamp, but it was dry and quiet - saw only one frog, an adult Azalyphris collidryas. At 2051 hr on open wet ground, west edge of the swamp, I caught a bright red Clelia clelia (74g, 590 +162, ??) crawling slowly and stretched out, head up. When seized, the snake thrashed and expelled noticeable quantities of smelly liquid from the cloaca. At first sight of the solid red snake I still hesitated, asking myself - is that a coral? At 2129 hr, ~100m in SURA a small (not neonate) Bothrops marinus crawled on the boardwalk right behind Wendy, and was obviously and completely sidewinding on bare soil. At 2133 hr, 110m in SURA, Wendy spotted a brightly marked Nothopsis rugosus crawling slowly and stretched out - response to handling was semi-rigid immobility, but when placed on substrate and poked it crawled. David Clark told us that young Clelia here are called "vibora de sangre", regarded as venomous and killed. July 13 Packed to leave after lunch. Forgot to record that at 2005 hr and 2152hr, on July 10, we saw an adult Leptodeira septemlineis ~1 meter above water, at the east end of the Cantarana Swamp, ~3m south of the boardwalk. Snake was immobile with fine