IOWA ACADEMY OF SCIENCE 
213. 
Occurs in Minnesota, and is common in eastern South Dakota; possibly 
Iowa. 
Family HETEROMYIDAE. (Tlie Pocket Mice.) 
Genus PEROGNATHUS Maximilian. 
14. Perognatlius Mspidus paradoxus Mekeiaim. Kansas Pocket Mouse. 
Occurs ill Minnesota, South Dakota and Nebraska; probably in north- 
western Iowa. 
Genus NEOTOMA Say. 
15. Neotoma campestris daileyi Merriam. Bailey’s Wood Rat. 
. Common in Eastern Kansas; possibly in Iowa. 
Family MURID AE. (The Mice.) 
Genus FIBER Cuvier. 
16. Filter zihethicus Linnaeus. Muskrat. 
Occurs all over the state. 
Genus 'SYNAPTOMYS Baird. 
17. Synaptomys cooperi Baird. Lemming Mouse. 
Ocurs in Minesota; probably in Iowa. 
Genus MICROTUS' Schrank. 
18. Microtus pinetorium scalopsoides Audubon and Bachman. Mole-like Vole. 
Northern form. 
Recorded for Illinois; very probably occurs in Iowa. 
19. Microtus minor Merriam. Least Meadow Mouse; Least Upland Vole. 
Occurs in Minnesota; probably in Iowa. 
20. Microtus pennsylvanicus Oed. Meadow Mouse. 
“Numerous specimens taken in Iowa” Pellett. 
21. Microtus nemoralis Bailey. Woodland Vole. 
Recorded for Iowa, Nebraska and Missouri. 
22. Microtus austerus Le Conte. Prairie Vole. 
Comon in Iowa. 
Genus EVOTOMYS Coues. 
23. Evotomys gapperi loringi Bailey. Red-backed Vole. 
Occurs in Minnesota; probably in Iowa. 
Genus REITHRODONTOMYS Giglioli. 
24. Reithrodontomys dycliei Allen. Western Harvest Mouse. 
Common in Kansas; possibly in Iowa. 
Genus ORYZOMYS Baird. 
25. Oryzomys palustris Harlan. Rice-field Mouse; Prairie Jumping Mouse. 
Genus PEROMYSCUS Glogler. 
26. Peromyscus maniculatus Baird and Kennicott. Prairie Deer Mouse. 
Common over Iowa. 
27. Peromyscus leucopus novehoracensis Fischer. Northern, white-footed 
Mouse; Wood Mouse. 
Genus ONYCHOMYS Baird. 
28. Onychomys leucogaster Maximilian. Missouri Grasshopper Mouse. 
Occurs in Nebraska and Missouri; probably Iowa. 
