MUKID.E 108 



tion, and are common in a few places in Arizona, but rare on 

 the California side of the Colorado River. Herbert Brown 

 found them about Yuma in bottom lands thickly overg-rown with 

 weeds and cockle burs. 



Onychomys torridus tularensis Mi^rrfam. (Of Tuhire.) 



TULARE GRASSHOPPER MOUSE. 



Small; above pale drab gray barely tinged with buffy. 



Length about 143 mm. (5.65 inches); tail vertebra* 50 

 (2) ; hind foot 21 (.83). 



T'ype locality, Bakersfield. California. 



Range, the Tulare Basin and vicinity; apparently not com- 

 mon. 



Onychomys torridus longicaudus iMkrriam. (Long — 



tail.) 



LONG-TAILED GRASSHOPPER MOUSE. 



"Above cinnamon-fawn well mixed with black tipped hairs; 

 ears small". 



Length 145 mm. (570 inches); tail vertebrae 55 (2.15); 

 hind foot 20 (.78) ; ear from crown 10 (.40) ; in dry skin. 



Type locality, St. George, Utah. 



An Onychomys occuirs from Owen Valley and Death Valley 

 eastward which I suppose to be longicaudus, but having no ex- 

 amples I may be mistaken in the species. 



Genus Peromyscus Glogeir. (Pouch — little mouse.) 

 Upper incirsors narrow; posterior molars somewhat smaller 

 than the otliers ; coronoid process of lower jaw sma:ll and low; 

 tail tapering, shorter than head and body in some species, longer 

 in others; pelage not harsh nor bristly. 



Peromyscus texanus gambeli Baird. (For Dr. \Vm. 

 Gambel.) 



GAMBEL MOUSE. 



Tail shorter than head and bodv. Above variable in color 



