BANGS: CHIRIQUI MAMMALIA. 



29 



feet, but was not taken above or below these heights. While showing the 

 group characters quite as strongly as either of its Mexican congeners, il/. Jiavi- 

 dus is very different specifically ; its yellowish coloration and rounded elevated 

 brain case at once distinguishing it. 



Peromyscus cacabatus,'^ sp. nov. 



Type.— Mus. Comp. Zoul., No. 10,225, ad., 9 Boquete, April 22, 1901. 5,000 feet. 



One hundred and thirtj'-one specimens, Boquete, 4,000 to 7,500 feet, Jan- 

 uary to April. 



Characters. — Probably nearest to P. guatemalensis Merriam (Todos San- 

 tos, Guatemala, 10,000 feet), tail shorter and colors not so dark; palatal slits 

 shorter and wider; nasals in old age, more expanded at tips, like those of' 

 P. furvus Allen and Chapman. 



Figs. 8 and 9. Peromyscus cacabatus. Type. 



Fig. 10. P. cacabatus, very old ^. No. 10,202, to show expansion of nasals in 

 old age. 



Color. — A broad dorsal band sooty, becoming less intense and browner on 

 sides of back and gradually passing into dull orange-buff on lower sides ; 

 sides of nose, at base of whiskers, dull grayish or buffy white ; top of nose, space 

 between base of whiskers and eye, and orliital ring black ; under parts — a 

 broad pectoral collar, dull orange-buff, rest of under parts varying from dull 

 grayish white to strong pinkish buff, — usually with chin and throat grayish 

 white, and belly grayish white, washed with pinkish buff — ; feet and hands, 

 whitish ; ears, nearly naked, dusky ; tail nearly naked, dusky above, usually 

 pale, yellowish gray below (the tail is very variable, the paler color below is 



1 Cacabatus, sooty (color). 



