Ereclsson 1934 Perognathus intermedius 9 mi. east of Supago Well, 1100 ft. Pima Co., Ariz. Feb. 4, 1934 no 291 taken on SE slope of granite hill near base; trap near hole in fine hard packed gravel area between rocks. Two others no. 287 and 290 taken near top of hill at similar places. New River Valley 30 mi. N. of Phoenix, 1650 ft. Maricopa Co., Ariz. Feb. 11, 1934. no. 331 taken on N slope of granite hill near base, soil fine hard packed coarse sand cemented, large rocks and fractured outcrops near. New River Valley Feb. 12. no. 347 taken on hard packed gravel surface of mesa; trap near a small group of rocks covering are of a square foot and offering crevices to hide in. A Perognathus baileyi taken within 5 ft. of place on previous night. Nos. 346-348 taken on N and east slopes of same granite hill as on Feb. 11; location similar. New River Valley. Feb. 13. no. 356 taken at base of Mt. Ochoa, trap beside rock, soil hard packed coarse sand formed apparently by weathering of hill, large rocks numerous. no. 357 taken well up on side of Mt. Ochoa, slope rock strewn ground same. 10 mi. east of Quartzite, Yuma Co., Ariz. Feb. 27. no. 419 taken on hard packed gravel of mesa forming bank of small wash, vegetation creosote, and cactus of several kinds, palo verde and ironwood along wash; break of lava hill across wash. no. 420 taken on lava hill 50 ft. above mesa.