Glass (1947:179) referred a specimen from 9 mi. NW of Lincoln, Lancaster County, to _P. h. paradoxus_. In discussing the zone of intergradation between _spilotus_ and _paradoxus_, geographically adjacent to the west, he wrote (_op. cit._:178), "It is evident that it proceeds northeastwards, toward the Missouri River since 2 specimens from eastern Nebraska, a juvenile from Webster County and an adult from Lancaster County, are both typical _paradoxus_." I have examined the specimen from Webster County referred to by Glass and agree that it is _paradoxus_. I have not seen the specimen from 9 mi. NW of Lincoln; however, another specimen from there, two others from Lancaster County, and one from Seward County (see above), are here referred to _P. h. spilotus_, rather than _P. h. paradoxus_, on the basis of notably darker dorsal coloration and smaller external and cranial measurements. The range of _P. h. spilotus_ in Nebraska, as presently known, therefore, is limited to the eastern, more humid part of the State, south of the Platte River. =Peromyscus maniculatus osgoodi= Mearns. DEER MOUSE.--Swenk (1908:95) reported this subspecies, under the name _Peromyscus nebrascensis_, from Glen, and Dice (1941:17) reported the subspecies from Agate, both localities being in Sioux County in the northwestern part of the State. Osgood (1909), however, did not mention Nebraskan specimens of this subspecies and excluded it from the State on his (_op. cit._) distribution map of the subspecies of _P. maniculatus_. In addition, Quay (1948:181) reports, as _P. m. nebrascensis_, deer mice obtained by him in the badlands of northern Sioux County and adjacent Niobrara County, Wyoming. Four deer mice referable to _P. m. osgoodi_ have been obtained from several localities on the Pine Ridge in Dawes County as follows: 3 mi. E of Chadron, 2; Chadron State Park, 1; 3 mi. SW of Crawford, 1. When compared with specimens of _P. m. nebrascensis_, geographically adjacent to the east, these mice are seen to be notably darker and less buffy than _nebrascensis_ and to average significantly larger in both external and cranial measurements. All deer mice from the Pine Ridge and adjacent badlands of extreme northwestern Nebraska probably are best referred to _P. m. osgoodi_. External measurements of two adult females are respectively: Total length, 180, 175; length of tail-vertebrae, 78, 74; length of hind foot, 19, 20; length of ear, 17, 16.