238 



Uiiivcrsih; of ('aUfornia Ptihllcal inns in Zoohxju. [Vol. 7 



dcscrti as exemplified by the Vietorville series than to either 

 h-I(iniafh< iisis or lo)i(jicau(Ia. As eompared witli the Vietorville 

 specimens of deserti, however, they are paler; the hind foot is 

 shorter ; the ratio of the length of the tail vertebrae to the total 

 length is less (see table of measurements). They are distin- 

 guished from licHh)-0(h))it(>m}is llaniafliciisis l)y nuieh paler 

 coloration and smaller size. 



External Measurements of 22 Adult Eeithrodontomiis m. discrti From 

 Humboldt County, Nevada. 



t. For method of taking measurements, see Introduetion. 



All dimensions are in millimeters. 



Locality 



Quinn River Crossing 

 Quinn River Crossing 

 Quinn River Crossing 

 Quinn River Crossing 

 (|)uinii River Crossing 

 Quinn River C'rossing 

 Big Creek Ranch 

 Big Creek Ranch 

 Quinn River Crossing 

 Quinn River Crossing 

 Quinn River Crossing 

 Big C'reek Ranch 

 Qninn River Crossing 

 (^uinn River Crossing- 

 Virgin Valley 

 Average of the males 



Quinn River Crossing 

 Quinn River Crossing 

 Quinn River Crossing 

 Quinn River Crossing 

 Quinn River Crossing 

 (^uinn River Crossing 

 (^)ninii River (h-ossing 

 Average of the females 

 Average of all the adults 



