Heere, H. 1987 13 July (continued) while Dave Hardy poked it w/ an umbrella. Then it inflated the neck, spread the quadrates, gaped widely and struck repeatedly. But wherever it connected on the strikes. At 0932 hr grabbed a Dendrophidion percassulinum 30ggs 638, 582+421mm ♀ at SHO 440m - it crawled frantically, seemingly ineffectually, and thrashed and inflated the body when seized. Inflation coused light skin to appear, but not dramatically blue as in D. vinith. Checked the stump on the Sendero Sabalo-Esquira where in ~1982 Manuel Santana and I found 2 Bothrops asper, but no snakes. At ~1980m on that trail we found an adult gravid ♀ B. asper where Gene Schoop spotted her yesterday. Site is a huge free fall that cascades down a steep slope to the trail, which is bounded on the East by the stream. There is a huge pile of sticks (branches) at trailside, and the snake was in a loose coil at ~1.5m about trail and facing it. Dark rich brown, w/ a very yellow head and white chin. During ~10 minutes in which the four of us milled around its only response was an occasional tongue flick. One of the most impressive snake scenes