Marshall, 1945 d Palau Rodent Trapping Accounts A few other nights, set a few traps in building where Marines complained of rats. Nothing but a few imm. R. rattus. One night set the 24 traps out without making special sets in exulans territory and got nothing (27 Nov). 2 December, Koror Set out the 24 traps baited with stale bacon in abandoned and ruined farms and gardens away from present human occupation, near HQ. Caught 2 R. rattus - an adult in a junk pile near HQ, and an imm far out in the farms - the last trap out. This is my first record of a R. rattus taken far away from humans on this island. As for the rest of the traps, under busher, near logs, grass at edge of banks, but always in open country. Got 13 exulans. Reset traps until midnight. Species Accounts of Rodents November, Dec. Rattus rattus Koror Common, to my knowledge only around quarters and mess halls and other buildings used by troops, and junk piles and stacks of Jap crates in the near vicinity of troops. They are bold feeders on candy and other edibles which the men always have in their rooms or tents. See above for only one noted away from humans. Mus musculus Koror, November Taken only in quarters (one). Rattus exulans Koror, 16 November, 20 November, 2 December. Although based on only 5 or six trapping nights, it seems safe to say that exulans is not found around the present human habitations, where the House rats may drive them out. They appear to be rare in natural wooded habitat - only one out of 24 traps on the side of the ridge in heavy jungle. However they are abundant along old garden walls, and in the tall grass around fallen logs, boulders, and banks, in open areas, such as abandoned gardens and farms. They do not move far for food because you can get three by resetting one trap, and another trap 10 yards away will remain untouched. Furthermore, the traps must be carefully set in favorable concealed places. On the 27th of November I got no exulans at all in traps through