Longhurst 1934 Dipodomys ordii June 30 Crooked R., 3400 ft., at Mouth of Bear Cr., Crooke Co., Ore. Dipodomys are most abundant here on the more level sandy ground between the R. and the canyon walls. One, however, was caught among the loose rocks well up on the side of the canyon. Their burrows are numerous in the sandy soil. July 19 Blalock's land, 250 ft., 2mi S W Paterson, Benton Co, Wash. One Dipodomys was collected at this locality. It was caught among high sagebrush, in sandy soil, about 100 yd. from the R. bank. A few other burrows were seen, but evidence of this mammal was not abundant. July 24 2mi SSE Burbank, 350 ft., Walla Walla Co., Wash. Dipodomys are very abundant in this area. Their diggings are very numerous, especially among low sand dunes covered by sagebrush. Their tail drag marks in the sand can easily be distinguished from the smaller marks of the Perognathus paws which are also abundant here. Several burrows are often seen together indicating that either several individuals occur in a colony or one digs several burrows close together.