1927 P.10 Los Esesmiles, Dept, Chalatenango, Salvador Oryzomys, No. 12433, was caught in the small stream. Hidelphis, No. 12434, was caught in a steel trap which had be set in a well used hole in a clay bank. These were old gopher holes which had been washed out. A large snap trap set in our house caught a black rat, Rattus rattus rattus, February 5, 1927 - Reithrodonomys Nos. 12442, 12443, and 12444 were taken on the trapline near camp. This form seems to be very abundant. Scotinomys Pitymys, No. 12445, was caught by a small hole in a rotten log among ferns at the edge of the oak rain forest. The log was very damp and so decomposed that the small round hole led into the log. Another Pitymys, No. 12446, was caught by a small hole at the base of a large oak tree; this was perhaps 100 yards within the rain forest. Peromyscus Nos. 12447 to 12450 inclusive were taken in the rain forest today. Heteromys, No. 12451, was caught among the heavy trees in the humid regions. Urocyon, No. 12452, was shot at night near camp.