Freeze, It. 1989 July 13 swallowed head-first. At dinner Rodolfo Revolto gave (continued) me an Erythrolamprus poiesis (20.5 g, 364+/-1/4+/-?.mm) he found this afternoon near the lab cleaning. The snake crawls frantically, and when restrained elevates the curled tail, then pokes the hand w/ it. During repeated restraint for [illegible] photography it did not attempt to bite. The tail seems recently cut off. After dinner, Ardell, Silvia Barahona (U.C.R.) and I walked to CES 700 and saw only a large Azlyochmis callidryas walking on a slender (~5 mm) branch of vine, ~3 m above the ground - its blue and yellow flank strips and red eyes very evident in my light beam. David and Billie Hard walked to ~700 m on the CCC and both through the Cartarara Swamp. They saw a ~4 ft. Bothrops asper coiled beside the trail at CCC 440m - it remained still during a couple of minutes of photography, then crawled into the forest. They brought in a Seplodeia septentrionalis from the Cartarara Swamp (25g, 530+/-195 mm). Found the Lachesis muta in same place, head not up and dart, at ~2130h. At x~2200 h an undergrad. from U. Florida (Marcie) showed me a