Goldman — Five New Mammals from Arizona and Colorado. 25 



25.2; greatest mastoid breadth, 13.5; interorbital breadth, 5.6; nasals, 

 9.3 x3.4; maxillary toothrow, 3.4. 



Remarks. — Specimens of Pcrognathus apache from Colorado were pro- 

 visionally referred by Cary* to the typical form, but reexamination of 

 certain of them in connection with additional material from other regions 

 reveals the rather well-marked differential characters here pointed out. 

 Examples from Medano Springs ranch, 15 miles northeast of Mosca in 

 the upper Rio Grande Valley in southern Colorada, also referred to P. a. 

 apache by Cary, seem more properly assignable to P. a. melanotis. 



Specimens examined. — Four, all from Colorado, as follows: 



Rifle (8 miles west), 3; Coventry, 1. 



•North Amer. Fauna, No. 33. p. 147, August 17, 1911. 



