[Footnote A: From Turtle Creek, Kerr County, Texas, after Osgood (1909:148).] _Distribution of Peromyscus boylii in Kansas_ The subspecies _Peromyscus boylii attwateri_ is known in the state only from Cherokee County, the southeasternmost county in the state. Probably the only locality where the brush mouse occurs in that county is on the systems of cliffs along Shoal Creek, southward from Galena, to the eastward of Baxter Springs. This is the extent of the known range, and in my opinion the probable range, of _P. b. attwateri_ in the state (see Fig. 1). Cockrum (1952:fig. 49) by mistake mapped the species from west of Baxter Springs in Cherokee County. Osgood (1909:149) recorded the subspecies _P. b. attwateri_ from Cedar Vale, Chautauqua County, Kansas, but the specimen from there must now be assigned to _cansensis_ on geographic grounds. Probably the specimen was not obtained from Cedar Vale itself for the habitat is not suitable there. Numerous specimens are known from 3 mi. W Cedar Vale, _in_ Cowley County, Kansas, all of which are assigned to _cansensis_. Osgood's recorded locality is situated between this locality and the type locality of _cansensis_, which is 4 mi. E Sedan, Chautauqua County, Kansas. The distribution of _cansensis_ also is shown in Fig. 1. [Illustration: FIG. 1. Distribution of the brush mouse in Kansas. The southernmost row of counties includes from left to right Cowley, Chautauqua, Montgomery, Labette, and Cherokee. Black dots represent trapping localities from which brush mice were not obtained. Triangles represent localities from which brush mice were obtained. The stippled area contains suitable habitat for the brush mouse, but was not investigated. The easternmost triangle represents a place 2 mi. S Galena, Cherokee Co., Kansas, from which _P. b. attwateri_ is known. The westernmost triangle represents a place 3 mi. W Cedar Vale, _in_ Cowley Co., Kansas, from which _P. b. cansensis_ is known. The triangle of intermediate position represents the type locality of _P. b. cansensis_, a place 4 mi. E Sedan, Chautauqua Co., Kansas. Many of the trapping localities have been investigated more than once.]