Green, H. 1990 December 16 (continued) trip, therefore not the pair I saw. From 1000-1130h I walked the CES-CEN-SOC loop, and smelled Tayassu on several occasions. At 1022h, checking the spot where I once stepped on a Lachesis at ~600m off on the CES, I spotted an adult Lanpropeltis triangulum crouching in undulatory curls w/ head tipped to ground, slowly (436.8g, ? 1075+162mm). The snake was instantly obvious at a distance of >4m, and was completely exposed in dappled sunlight -- it was not cryptic! As I dashed up it took flight in rapid undulation, and when seized it thrashed laterally w/ tail coiled, exposing bright belly rings as well. Bit repeatedly and a strong (but not particularly foul) odor was easily sensed. No palpable food or eggs. Paired off and on into the evening, and there are pools everywhere along the trails. Between [illegible] 1945-2015h I was taken to where three people had seen small snakes: 1) by the River Station by Lisa that we couldn't find; a tiny Sibon nebulata beside the AC Job; and a juvenile Bothrops asper coiled in the center of the sidewalk a few meters from forest edge in the clearing. The latter was in what I think is typical Jereiopels huntig posture w/ a coil 2 loops deep and head extended out over a lower loop -- got photos (8.6g, 372+43mm, ?). Scattered Hyla callig in Cantarana Swamp, periodic rain, no snakes. [See below re B. asper]