Merritt 1943 50 journal May 24, West side Arroyo Seco, 200ft., 4 mi. S Soledad, Monterey Co. Calif. Yesterday Seth B. Benson and Emma Benson and myself drove from Berkeley to the above locality. We set out traps in the latter part of the afternoon. I set 50 Museum Special Traps and 50 live traps. The habitat at this locality is the marginal land between the dry sandy river wash and the heavily grazed farmland. Here are found many desert type plants such as: Eucca, Adenostema, Willow, Wild Buckwheat, Yarrow, Lotus, and Pitcher Sage. Salvia mellifera. The soil is sandy for the most part. Patches of soil are left uncovered by vegetation. Where the soil is covered more or less completely a low grass is the dominant cover. The 50 live traps were set across an area having only lower bushes and not along the willow clumps. An effort was made to place them where the sandy soil was bare. Traps were placed about 40 ft. apart. The animal caught in these were: 1 Kangaroo Rat - Dipodomys (immature), 1 Mus musculus, 1 Reithrodontomys, and 1 Peromyscus (immature). The Museum Specials were placed along willow clumps mainly and a few were placed on the bottom of the dry river bed near its edge. Out of 28 traps set along the willow clumps, 9 caught Peromyscus