June 14. 1987 10 July (continued) the Ecological Reserve, beside the Sendero Cantarera boardwalk. I perceived several prominent protrusions suggesting multiple prey items. I caught the snake at ~1400, at which time there was a single large, fusiform bulge. At ~1845 hrs I palpated a bat (16.5g, one wing largely digested) from the snake. Seems that the bat was eaten early this morning, perhaps as it returned to a roost that had previously been located by the snake chemoreceptively. At ~1500 located an adult Haemodipsus mutus at CCC 700 that Joseph Cornell told me about. The snake is ~2m long, healthy and fresh shed looking, and ~20m off the trail behind an old fallen tree. The snake was near the base, lying on a ledge of soil under the edge of the log, quiescent. Rained heavily as we walked back in and out to 530 CES, where the smaller H. mutus is still under the Danasa farm. Both Dave Hardy (who at San Mateo arrived today) and I thought it might be in pre-shedding condition. Rain continued into the night. 11 July Partly cloudy, some sun. Walked around the Camino Circular, and found the H. mutus at CCC 700 as was yesterday, except head had changed positions. Checked the Bothrops asper at Holdridge 225, and found it in