Greene, H. 1989 July 10 mid-ventral scars on #'s 24, 31, 65, and 110-113 (continued) Starting from the anal plate (as "0"), no evidence of external injuries. We implanted a Telonics Transmitter (27.8g), 151.270 mhz. No apparent problems. On the 8th she defecated a large quantity of spiney rodent fur. We watched her for an hour or so after, during which she was slowly recovering responses, and at one time a gentle nudge provoked tail elevation and slight curl; -a response I saw in an adult once after handling. Also, as she was anesthetized the snake hissed repeatedly in a manner that people were hit several feet away. After dinner Dave and Ardell and I walked out the CES to 700m and to the Cantarana Swaps via Sendero Sura, but saw nothing save frogs. July 11 at 0800 we released the Lachesis muta at the capture site and left her immobile and in an alert coil; later Billie Hardy reported that w/in an hour the snake was not to be seen. Dave and Ardell and I walked around the Loop Trail, then out to Holdridge #150m in an unsuccessful attempt to find a "very fat" Bothrops marutus that Jacks Ewell saw there yesterday. At 20830hr a Natrix capito hopped several times across our path, and expanded its dewlap when Dave seized it (ccc 50). At lunch Rocio Jopez brought me an injured juvenile Ninia maculata