1927 P. 7. Hacienda Chilata, Dept, Sonsonate, Salvador Two spiny-pockeet mice, lionymys, were caught, but were ruined by ants. These of course were cought on the ground. In referring to the right and left wings of the uterus, I taken the position dorso-ventrally. In other words, with the specimen lying on its back and head away from me. Didelphis mesamericanus , Nos. 12860 and 12861 were caught in traps baited with Catnip Oil Today I saw a Siomodon in the coffee. It was found in a little patch of green grass from which it flew to a hollow tree. The bat which I refered to as a New Genus, was found by G.D.S. hanging under some roots of a tree where the dirt had been graded away to make a trail through the coffee. The bat was solitary and the pile of dropping below indicated that the bat had been using this place for some time. It was hanging in a clinging to the rools in a little cone like cavity thus hiding it from the trail.