Greene, H. 1984 22 June (continued) or crash into the bushes. Once I got it almost in, then the next time, all the way. The snake weighs ≈ 4.2 kg, heaviest we've caught yet. It seems to be either gravid or have a large food item, and I'm not sure of the length. This is the first we've caught at night, and was impressively more aggressive than those handled in the daytime. Dr Nic Heaf Dave Hardy, who originally initiated his 2 weeks visit in hopes of seeing a bushmoss, left 8½ hrs before we found this one. What a day! 23 June At 1000h the smaller Bothrops asper (ch 2) is m high grass a few meters N of the dock stairs and just above the river; 25/30. Still can't see it. At ≈ 1030 h the larger B. asper (ch 5) is in the same place, facing NE (took photos). Rained most of the afternoon so couldn't radiotag the Lachesis. At 1620h ch2 is apparently in the same place; 29/30. At 1636 h, ch 5 is in the same place and position; 26/30. 24 June Most of the morning was sunny and very hot. At 1025h, the ch 2 Bothrops asper was apparently in the same place; 28/30. At 1036h, the ch 5 B. asper was in the same place w/ head facing S, on an outer coil; 26/30 (in shaded area). It began raining hard just after lunch and continued until ≈ 1630h, so we couldn't tag the Lachesis. Continued to drizzle after that. At 1730 h I checked the