_Geomys bursarius_, Baird, Expls. and surveys for a railroad route from the Mississippi River to the Pacific Ocean, pt. 1, Mammals, 377, 1857; Merriam, North Amer. Fauna, 8:120, January, 1895; Lantz, Trans. Kansas Acad. Sci., 19:175, 1905; Lantz, Kansas State Agric. College Bull., 129:335, April, 1905; Scheffer, Kansas State Agric. College Ento. and Zoöl. Dept. Bull., 172:199, September, 1910; Hibbard, Trans. Kansas Acad. Sci., 36:240, 1933; Allen, Kansas State Teachers College Emporia Bull. Inf. Stud. in Educ., 20 (no. 5):15, May, 1940. _Geomys bursarius bursarius_, Black, 30th Bienn. Rept. Kansas State Board Agric., 35:181, 1937. _Geomys breviceps_, Baird, Expls. and surveys for a railroad route from the Mississippi River to the Pacific Ocean, pt. 1, Mammals, 380, 1857. _Type locality._--Lincoln, Lancaster County, Nebraska. _Distribution in Kansas._--Northeastern Kansas, westward certainly to Clay and Marion counties and southward certainly to Greenwood County. _Description._--Color: Upper parts Mummy Brown in fresh appearing pelage of February but in more worn pelage of March more reddish being near (16') Prout's Brown; top of head and sometimes back darker than rest of upper parts; underparts usually with some whitish anteriorly; fore and hind feet and approximately distal half of tail white. Size: Large, total length averaging more than 280 mm. in males and 257 in females; hind foot averaging 35 mm. or more in males. Skull: Large; rostrum averaging more than twice as long as wide; sagittal crest high in males and barely present in females; occiput vertical when skull is laid top down; least width of braincase less than distance from alveolus of upper incisor to middle of lateral border of P^4 at alveolar border. _Comparisons._--From _Geomys bursarius lutescens_, _majusculus_ differs as follows: Color darker, Mummy Brown to Prout's Brown instead of Buckthorn Brown. In both sexes: head and body a fifth to a sixth longer; hind foot 5 to 6 per cent longer; skull averaging larger in all parts measured except that premaxillae (in each subspecies) extend equally far posteriorly to nasals; diastema longer in relation to basilar length; rostrum longer relative to its width; sagittal crest higher; rostrum often more depressed distally; angle of suture between maxilla and jugal more obtuse. From _G. b. bursarius_, according to Swenk (1939:6), _majusculus_ differs in larger size.