Mustangi, Meika A. 1993 journal 27 Ubatuba - SP Brazil similar to mangrove trees, and some seem to use those to be able to grow on rocky terrain (and somewhat steep), embracing the big boulders w/ their roots. In total, we set 120 traps (with stations with 3 traps as described before) and kept them open for 4 nights, totalling 480 trapnights. We caught 2, 6, 6 and 2 individuals (plus 1 Akodon that escaped from a Tomahawk), making 3.5% trapping success. Both number of individuals and number of species were lower than last year. Proechimys seems to be high in juvenals at this time, from what our captures show. We tanyotyped 2 Proechimys, 1 Akodon and 2 Oryzomys. João de Vincenzo (Pousada da Praia do Félix) says he has seen a small opossum (Marmo- sep?) near his house. Altitude here varies from 50m to 250m (our highest trapping station). A young individual of Proechimys, that was brought kept in a trap, vocalized a lot in the morning and was taped. The Metachirus male also vocalized, w/ a mixture of hissing, and teeth chattering. We could observe him inside the trap w/ the penis evicta.