_=Citellus beldingi crebrus=_ Hall. Belding Ground Squirrel.--Durrant (1952:113) had only two specimens of this ground squirrel from Standrod, Boxelder County. Additional specimens have been obtained from the following localities in northwestern Boxelder County: Grouse Creek, Park Valley, Grouse Creek Mountains, 12 miles northwest of Grouse Creek, and Goose Creek. _C. b. crebrus_ now is known to inhabit all the major drainages of the Raft River, Goose Creek, and Grouse Creek mountains. In addition to extending the known area of occurrence of this animal in Utah, these specimens prove also that this species is not restricted to the Snake River Drainage as Durrant (1952:113) supposed, but occurs also in the Great Basin Drainage. _=Citellus richardsonii elegans=_ (Kennicott). Richardson Ground Squirrel.--Recently, Hansen (1953:132) reported on specimens of this species from Rich and Summit counties. Additional specimens are now available from Highway 165 [2 mi. E Summit--Daggett Co. Line], 2 miles south of Utah-Wyoming State Line; 5 miles west of Manila, and one mile northeast of Manila (Carnegie Museum). These localities are in Daggett County. The occurrence of these ground squirrels in Rich, Summit and Daggett counties suggests that they occur along the entire northern piedmont of the Uinta Mountains. _=Citellus lateralis trepidus=_ (Taylor). Golden-mantled Ground Squirrel.--Durrant (1952:126) estimated that practically all of the area in Utah that is within the Great Basin might be included in the range of this subspecies. Actually, he had specimens from only the Raft River Mountains in northwestern Boxelder County. He included sight records from the Deep Creek Mountains and from the Oquirrh Mountains. Subsequently two specimens, numbers 7469A and 7470A, were obtained from the Deep Creek Mountains. To date neither specimens nor subsequent sight records have been obtained from the Oquirrh Mountains, and we are of the opinion that Durrant erred, and that the golden-mantled ground squirrel does not inhabit these mountains. Therefore, it seems at this writing that this subspecies, in Utah, occurs only in the extreme western and northwestern parts of the state in the Deep Creek and Raft River mountains, and not within the basin of Pleistocene Lake Bonneville as formerly supposed.