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IOWA ACADEMY OF SCIENCE Voi,. XXVIII, 1921 
7. Woodchuck. Marmota monax monax 
Quite common along Iowa river and Einn creek. 
8. House Mouse. Mus musculus 
An abundant pest. 
9. Norway Rat. Rattus norvegicus 
Common pest throughout the county. ' 
10. Northern White-Footed Mouse. Peromyscus leucdpus 
noveboracensis 
Very common mouse. Eighty-nine were taken from about 
226 pellets secured under a roost of four long-eared owls on 
April 3, 1913. 
11. Meadow Mouse. Microtus pennsylvanicus pennsylvanicus 
Every clover field has its quota of these mice, particularly on 
the river-bottom lands. Seventy skulls were taken from the 
long-eared owl pellets mentioned above. 
12. Prairie Meadow Mouse. Microtus ochrogaster ochro- 
gaster 
Eighteen skulls of this mouse were identified in the long-eared 
owl pellets. 
13. Muskrat. Fiber sibethicus zibethicus 
Quite common in Iowa river and the Goose Ponds north of 
Marshalltown. 
14. Pocket Gopher. Geomys bursarius bursarius 
Common in all pasture lands and clover fields. 
15. White-Tailed Jack Rabbit. Lepus townsendi campanius 
Beginning to appear in the county. Old settlers told me that 
they had never seen if in the county until the last few years. I 
shot three during the fall of 1913 and saw the tracks of several 
more at various times. 
16. Mearn’s Cottontail. Sylvilagus doridanus mearnsi 
Very common. I collected four on December 12, 1914, and 
shot others at various times, 
17. Red Fox. Vulpes fulvus fulvus 
I saw several skins in fur buyers’ supplies that were taken 
along Finn creek in 1914. I was unable to get exact dates on 
these. 
18. Coyote. Canis latrans latrans 
An occasional one secured by trappers and brought in for 
bounty. I saw one alive on December 12, 1914, and learned of 
one den dug out in the spring of 1915. 
19. Illinois Skunk. Mephitis mephitis avia 
I saw many skins of a large skunk and identified them some- 
