JESimpson, 1938 p.2. Dipodomys merriami (continued) 900+ ft., ½ mi. S. Crater Elegante, 34 mi. W. Sonota, Sonora. march 27, 1938 Ø 84 taken on bank of large sand wash thru dark lava; vegetation there was of mesquite, ironwood, palourde, and soft succulents. Nothing but bait in pouches. 675±ft., Cerro Colorado, 28 mi. W. Sonota, Sonora. 3 m.s. march 30, 1938 Three (3 Ø 5; nothing in pouches) taken in sand among mesquite and creosote. Outside mesquite area in creosote and sand two more taken in live-traps; turned loose. 50±ft., Cerro La Cholla, 6 mi. WNW Punta Peñasca, Sonora. april 3, 1938. Ø 115 taken in crushed-granite between granite-hills and sand among ocotillo, creosote, and cholla. (Cheek-pouches empty.) april 4, 1938. Ø 120 taken in large wash thru granite hills; Cheek-pouches empty. april 5, 1938. Ø 122 and 2 ♀ caught in sandy wash among ocotillo and cholla. Cheek-pouches empty. april 6, 1938. 7 taken in sand dunes among a scrub-grass and some creosote. The party catch numbered nineteen (12 Ø 5 and 9 ♀♂); some of these taken among cholla and ocotillo. The cheek pouch contents were