Puerto del Triunfo, Dept., Usulutan. Dec., 28, 1925 - Jan., 25, 1925 Oryzomys Most of these specimens were taken in a brushy banana patch at the north cast corner of the little village. Here the banana trees were few and rather small and many trails led hither and thither through the brush and heavy dry grass. At the bases of some of the bunches of grass were stems which had been nipped into small pieces. In these places and at the bases of banana trees was where most of my Oryzomys were caught. This banana grove covered about an acre of ground; when we were breaking camp the owner had cleared away about half of the brush and grass. No. 10972 was taken on some vines between two trees at the edge of the carretera trail which led through the jungle. Nos. 10933 and 10947 were trapped in second growth jungle in vines about six feet from the ground. In all places where I cought Oryzomys was never less than two hundred yards away and in most places farther than that. There were small streams that were drying up fast. The stomach content of most specimens taken was either red pulp, or plant pulp, and sometimes both. No. 11032 contained insect and orange pulp; No. 10984 fruit pulp and seeds.