1983 24 January (continued) Started up a slope after the first creek saw a big Chironius grandisquamos on the trail. This was a few minutes after I'd barely glimpsed the tail of slender brown and/or green snake go off the trail into grass, so I was surprised it didn't move as I dashed ~2m and seized its posterior. The snake's tail was still in bushes to the right of the trail, head pointed up trail, as if it had crawled out and then turned. When I grabbed the snake it turn, inflated, drew back into an epox-erated 5-coil and struck. Also muschy and managed to bite my hand once. Joshs a little different than the two I tracked at Ja Selva, perhaps because of size or geographic variation. This one has regular coffee bands alternating w/ black, much more obvious vertically. Viewed from above, the snake is almost jet shiny black. Vertically, esp. on the posterior ~1/2 and on the tail, these light bands are almost rose colored. At 1400 I reach a good jaguar track, start casting it, then have to return for more paraffin. Finally do it the Koford way; took >30 minutes, ~1/2 of a small can of Steno (jellied alcohol) and quite a lot of paraffin. Saw nothing else on the trail, and the others didn't when they went up to the falls either. Much meriment during and after dinner. I couldn't sleep and eventually got