there, 19. 1984 9 june (continued) and the Alajo to the Rio Sarapiqui, collected a pile of smelly lotra scat, full of crayfish parts, at the rock where I've found otter scat before. Just before we reached the station, at 1025 hr at ~100m on the CES, I cought a Dendrophidion persimilatum. It inflated, exposing interscalar skin, and struck only once. During the morning Michael Fogden cought a beautiful little leptophis melinurus. 10 june From ~0800 - 1120 walked w/ Manuel and Dane: out Sabalo- Esquina Trail to ~1700m to check the Ferciojelo stump (empty). At 0858 hr, ~1125m SSE, we caught an adult Dendrophidion venator as it crawled rapidly away at trailsde. When grabbed, it inflated the anterior ~1/2 of its body, exposing the blue interscalar skin, and struck and bit at my hand. We came back by way of the Sendero El Swampo, where we saw large Felis tracks in the mud and checked the old Lachesis site at 750m sign on the trail (no snake). At 1102 hr, ~200m on the East River Rd., Manuel saw a fast brown snake, cf. Mastigophrys, that was too fast for us. At ~1600 hr Carol Baird (grad student from Berkely) took us out to her Heliconia study plot at ~950m on the West River Trail and pointed out a very young Bothrops schlegelii. The little viper, est. total length-