26 Howell — Mammals of the Middle Mississippi Valley. 

 Citellus tridecemlineatus (]Mitcliill). 



STRIPED SPKIIMOI'IIILE: OROrND SQl'IKKEL. 



This small <:ruuu(l siniirrclis a iirairicdwcllcr, ami is (listribnted locally 

 over the northern parts of lllin(]is ami Indiana, llahn records it from 

 various places in northern In(hana as far sonth as Terre Ilante.* Its 

 sonthern limit in Illinois was found to be close to the town of Kansas, 

 where a small colony was located in a cemetery. Inquiries for the animal 

 at Casey and Greenup, a little fartlier south, indicated that it does not 

 occur there. 



Specimens liave been idt'ntilled in tlie Biological Survey from the fol- 

 lowing localities: 

 Illinois : IVw'kory, Lake County; Sunbeam, ^ifercer County; Saxon, 



Henry County ; Kishwaukee; Kansas; Argenta; AVarsaw ( specimen in 



U. S. Nat. Mus.). 



Peromyscus gossypinus megacephalus (Rhoads). 



WESTERN COTTON MOUSE. 



This species is common in the swamjis of the Lower Austral Zone and is 

 frequently taken, also, in wooded blntis in tlie same /.one. It ranges nortli 

 to southern Illinois and southeastern ^Missouri. 



S})eciniens were collected at the following localities: 

 Missouri : St. Francis River (westof Senath), S; Portageville, 1; Cushion 



Lake, 1 . 

 Illinois : Olive Rranch, 2; Wolf Lake, 1 ; (Jolconda, 3. 



Peromyscus maniculatus bairdi (Hoy tV: Kennicott). 



PRAIRIE WHITE-FOOTED MOUSE. 



Although mainly confined to prairie regions, this s]iecie.shas been taken 

 occasionally in l)ottomland timber. Its range extends south to extreme 

 southern Illinois. 



Specimens were taken at the following localities: 



Missouri: Horseshoe Lake, St. Cliarles County, 1. 



Illinois: Riehl Station, near Alton, 1; Kansas, :! ; ( )live Rranch, 1 ; 

 McClure, 1. 



Oryzomys palustris (Harlan)- 

 RICE i;at. 



This species is found throughout the Austrorii)arian Fauna and its range 

 extends also well into the Carolinian along streams. 



It was taken for the first time in Missouri and Illinois and may l)e 

 looked for as well in southern Indiana and Ohio. 



Specimens were collected at the following localities: 

 Missouri: Kennett, 2; Portageville, 1; .Ahirbk- Hill, 1. 

 Illinois: Olive I'.ranch, 4. 



*Tliirl.v-thinl Ann. R(>i'. Dept. Cieol. of Imliana, ]i\>- I75-17S, T.iOi). 



