DISTRIBUTION OF INSECTIVORES, BATS, AND RODENTS 279 



Distribution of Rodents (continued). 



Family VIII. 

 GEOMYID.E. 



113. Geomys . 



114. Thomoniys 



Family IX. 

 HETEROMYID.E. 



115. Dipodomys . 



116. Perodipus 



117. Microdipodops 



118. Perognatlms . 



119. Heteromys . 



Family X. 

 BATHYERGID^E. 



120. Batliyergus . . 



121. Georychus . . 



122. Myoscalops . 



123. Heterocephalus . 



Family XI. 

 DIPODID.E. 



124. Sminthus. 



125. Zapus . . 



126. Dipus . . 



127. Alactaga . 



128. Platycercomys 



129. Euclioreutes . 



Family XII. 

 PEDETID.E. 



130. Pedetes . . . 



12 

 10 



I 

 38 

 15 



76 



1 



10 



3 



16 



4 



7 



10 



1<) 

 1 

 1 



33 



<& 



f-.O 



o'Ss 



31 



Si? 



12 

 10 

 1 

 38 

 12 



73 



4 



1 



10 



10 



1 



1 



6 27 



