﻿NO. l6 NEW RODENTS FROM AFRICA HELLER 3 



Nat Mus. ; collected by Edmund Heller, August 26, 191 1 ; original 

 number, 41 14. 



Characters. — Closely allied to saturatus, but feet wholly white ; 

 ears larger, and general tone grayer; skull differs by longer palatal 

 foramina. 



Coloration. — Dorsal coloration hair-brown ; sides of head and body 

 drab, the orbital ring and base of whiskers black; feet white; 

 ears broccoli-brown, thinly haired ; underparts buffy, chin white, the 

 hair everywhere plumbeous at base ; tail broccoli-brown above, 

 slightly paler below, the tip white. 



Measurements. — Head and body, 92 mm.; tail, 80; hind foot, 18; 

 ear, 17. Skull: greatest length, 28.4; condylo'-incisive length, 25; 

 basilar length, 22; zygomatic breadth, 15; interorbital constriction, 

 5; palatilar length, 8.5; palatal foramina, 3.8; nasals, 10.5 x 3.4; 

 diastema, 6.2; maxillary toothrow, 3.3; condylo-incisive length of 

 mandible, 15.8; coronoid-angular depth of mandible, 7.5. 



This dormouse is confined to the forested summits of the higher 

 mountains of the Mathews range. Specimens were secured on both 

 Uaragess and Lololokui. Named for Dr. M. E. Johnston, who 

 accompanied the Rainey safari, and to whom the writer is indebted 

 for much assistance. 



GRAPHIURUS MURINUS ISOLATUS, new subspecies 



Taita Forest Dormouse 

 Type from Mt. Umengo, Taita Mountains, British East Africa; 

 altitude, 5000 feet; adult female, number 181788, U. S. Nat. Mus.; 

 collected by Edmund Heller, November, 191 1; original number, 



4719. 



Characters. — Closely resembling saturatus in color, but grayer 

 above with larger feet and ears ; skull very different, the nasals much 

 longer, the cheek teeth decidedly heavier, and the mesopterygoid 

 fossa and palate much wider. 



Coloration. — Above Prout's brown, the median dorsal region 

 darker, almost seal-brown ; sides lighter raw umber, cheeks and 

 lower sides bordered by ochraceous-buff ; the orbital ring and base 

 of whiskers black ; ears broccoli-brown ; feet chiefly white, only a 

 median streak dark ; underparts ochraceous-buff, the hair plumbeous 

 basally, except on chin where it is uniform buffy ; tail broccoli- 

 brown above, slightly lighter below with the tip white. 



Measurements. — Head and body, 95 mm. ; tail, 90; hind foot, 19; 

 ear, 16. Skull: greatest length, 28; condylo-incisive length, 24.5; 



