An adult female, no. 426a, Iowa State College, from Barnum, in the brown winter coat, agrees with _primulina_ except that the orbitonasal length of the skull is more as in _spadix_ and the presence of some light color on the lower part of the hind legs suggests _spadix_. The skull only, no. 440a, Iowa State College, labeled merely Webster County, Iowa, is almost a duplicate of no. 426a. A subadult male, no. 427a, Iowa State College, from Moorland, Iowa, only about six miles southeast of Barnum, likewise is indistinguishable from _primulina_ except for having a white winter coat and in being relatively broad in the mastoidal region. Nevertheless, both of these animals are here referred to _spadix_ because the average of specimens from this general area is nearer that of _spadix_. No. 497a, Iowa State College, an adult female in white winter pelage, from Ames, approaches _primulina_ in the narrow rostrum and smaller teeth but otherwise approaches or even agrees with _spadix_. Two adult males, without external measurements, from Pilot Mound, Iowa, have skulls quite like males of _longicauda_ from Alberta. The only approach noted to eastern forms is the restricted color of the underparts on no. 2856, Coe College, which has a brown winter coat. The color of the underparts is not extended so far out on the feet as in _longicauda_. Also the tympanic bullae of this specimen are a trifle narrower. The other male, no. 2652, is in the white winter coat. The one female from the same place, no. 2660, Coe College, in brown winter pelage, has a skull notably unlike that of _longicauda_ or _spadix_; the skull is narrower and practically indistinguishable from that of the largest female skull of _primulina_ available from Lawrence, Kansas, save that the tooth-row is much longer. The color pattern also agrees with that of _primulina_ or _noveboracensis_ in that the color of the underparts extends only as far as the knee on the hind legs and is narrow on the belly. Nevertheless, another adult female, no. 120a from Amaqua Township, some 6 miles southwest of Pilot Mound, is in all respects typical of _spadix_. This is the more remarkable because another comparable specimen from less than 20 miles to the southwest in Worth Township is equally typical of _primulina_.