_Remarks._--In employing the subspecific name _majusculus_ we are following Swenk (1939:6) who on the basis of larger size differentiated the animals from southeastern South Dakota, the eastern parts of Nebraska and Kansas, and the western and southern parts of Iowa, from _G. bursarius bursarius_ to which he assigned a more northern geographic range. In the absence of comparative materials of the northern subspecies we cannot make an independent decision on the validity of _majusculus_ and recognize that if it is inseparable from _G. b. bursarius_ the latter name will apply to specimens from northeastern Kansas. We are the more uncertain about applying the name _majusculus_ to specimens from eastern Kansas because they average smaller than topotypes. Only at the northeasternmost locality in Kansas (3 mi. N Cummings, Atchison County) do specimens average as large as topotypes of _majusculus_. Farther southward they become progressively smaller in eastern Kansas, and we interpret this as intergradation with the still smaller subspecies _major_, to the southwest. The average external measurements of two adult males from Atchison County are: 321-99-35. Thirty-six miles farther south, in Douglas County, 16 adult males average 289-80-36. From Hamilton, Greenwood County, 80 miles farther southwest, nine adult males average 284-83-35. The maximum total length recorded at these three localities is: Atchison County, 342 (1 of 2 specimens), Douglas County, 308 (1 of 16 specimens), Greenwood County, 357 (in coll. of Dr. Glenn C. Rinker and 1 of 15 males of all ages involved). It will be seen, therefore, that although there is a trend to smaller average size toward the southward, the maximum of 357 millimeters total length at Hamilton exceeds the maximum of 352 millimeters recorded by Swenk (1939:3) among 86 males at Lincoln where the recorded average is largest. Four specimens from Salina (Debold Farm) are intermediate structurally, as they are also geographically, between _G. b. majusculus_ on the one hand and _Geomys bursarius lutescens_ and _Geomys bursarius major_ on the other hand. In color they agree with _majusculus_, as they do also in width of nasals posteriorly, in more obtuse angle of the rostrum and maxillary arm of the zygomatic arch. They agree with _G. b. lutescens_ in having the occiput inclined anterodorsally, and are intermediate between _majusculus_ and _lutescens_, but nearer the latter in size of skull and in length of the rostrum relative to its width.