294 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. i. 



Sigmodon h. texianus. 



Sigmodon h. texianus, Aud. and Bach. Quadr. in, 1853, p. 

 229, PI. 147, Fig. 2. 



Thirteen specimens. 6 Noble, Oklahoma Territory; 7 Dough- 

 erty, Indian Territory. 



"The cotton rats were all taken around the edge of a field in 

 the river bottom one and one-half miles north of Dougherty. 

 Apparently they were tolerably common, but from some cause 

 would not enter traps easily. Most of them appeared to be liv- 

 ing in old brush piles from which their runways extended in 

 every direction. I was told they destroyed an immense amount 

 of corn when in the shock, and that they also cut the hay in 

 stacks very badly, particularly about the base after the manner 

 of the meadow voles (Microtus pennsylvanicus) in the East." 



(T. S.) 



There is considerable difference in the total lengths of adult 

 individuals, the measurements varying as much as twenty milli- 

 meters, and the color of the face ranged in different specimens 

 from a dark gray through rufous to ochraceous. 



Reithrodontomys dychei. 



Reithrodontomys dychei, Allen. Bull. Am. Mus. Nat. His., 

 N. Y. , 1895, p. 120. 



Thirty specimens. 29 from Alva, i White Horse Springs, 

 Oklahoma Territory. 



" The little Harvest Mouse next to Cricetodipus richardsoni is 

 the commonest small mammal found near Alva, and no matter 

 how cold the weather it was never prevented from moving about. 

 There were nights during my stay in Alva when the blizzard was 

 so intensely cold that it was almost unbearable, yet on going to 

 my traps the following day, I found some of these little fellows 

 frozen hard as rocks in the traps, and tracks of many others in 

 the snow. I believe this species is confined exclusively to the 

 flat bottom land along the Salt Fork River, for I failed to secure 

 a single individual anywhere on the prairie. During my stay at 

 this place last summer (1898) I caught but one Harvest Mouse 

 and it was utterly ruined by the ants which are a curse to the 

 animal collector during the warm season." (T. S.) 



Reithrodontomys chrysotis. 



Reithrodontomys chrysotis. Elliot. Pub. Field Col. Mus., 

 Chicago, 1899, p. 281, zoology. 



