DESCRIPTION OF A NEW MOUSE. 



Table of Measurements of five Specimens of Hesperomys Anthony! collected 



at Camp Apache, Grant County, New Mexico, by A. W. Anthony. 



{Measurements in millimeters). 



CRANIAL CHARACTERS. The skull, compared with that of 

 H. leucopus, is short, broad, and flat. The incisor foramina 

 reach past the anterior plane of the first molar. The nasals are 

 short and do not extend so far posteriorly as the premaxillaries. 



Excluding skull No. 2840, which is not full grown, the close 

 agreement in cranial measurements is remarkable. 



Cranial Measurements. 



* The apparent discrepancy between the total length as recorded by Mr. 

 Anthony and that taken from the dry skin is due to the necessary stretching 

 of the fresh specimens for measurement. 



