Journal 42 Mostrangi, Meika A. 1993 lies in the southern end of Baía de Sepetiba, 1.5 hr away, by car, of the city of Rio de Janeiro. We set up all 120 traps Sunday. Till the day we left it didn't rain any more. We worked in Minasadoras Brasileiras Reunidas' farm. Secondary forest follows the pasture, The property lies along the BR-101 (Rio- Santos) highway. There are many families, living nearby and the transit of people seems quite intense. Rio Sahi flows through the area. The area where we worked seems where to have been in the part the farm house was. There are many fruit trees (jacás) around. Temperatures ranged from 18-25°C during our stay, including day and night temperatures. Days were warm, with partially covered sky. The moon was almost full and was rising early (around 6 pm). Traps remained open for three nights, totalling 360 trapnights. We used banana, guava sweet (goiabada) and mortadela as bait. Besides the animals collected, we captured a lactating Metachirus female, which we released. We also caught (and collected) a very young Metachirus male and Proechimys and 2 Marmosops micans, both males, one