lO SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 63 



EPIMYS KAISERI CENTRALIS, new subspecies 

 Nile Bush Rat 



Type from Rhino Camp, Lado Enclave, British East Africa ; adult 

 male, number 165035, U. S. Nat. Mus. ; collected by J. Alden Loring, 

 January 11, 1910; original number 8633. 



Characters. — The coloration of this race resembles closely that of 

 Epimys kaiseri norae of the northern Guaso Nyiro drainage of 

 British East Africa but dififers by its less buffy tone to the dorsal 

 surface and by the much shorter tail and wider skull. 



Flesh measurements of the type were : head and body, 148 mm. ; 

 tail, 162; hindfoot, 30. Skull: condylo-incisive length, 35 ; zygomatic 

 breadth, 19; interorbital width, 5.8; nasals, 4.5X 15 ; length of upper 

 tooth row, 5.8; diastema, 10; length of incisive foramina, 9. 



A series of 38 specimens are in the National Museum from Rhino 

 Camp, Lado Enclave. Others somewhat less typical in character are 

 from Unyoro, Uganda, and from Nimule and Gondokoro in northern 

 Uganda. 



MUS GRATUS SORICOIDES, new subspecies 

 Taita Pygmy Mouse 



Type from Mount Mbololo, Taita Hills, British East Africa ; 

 adult male, number 183544, U. S. Nat. Mus. ; collected by Edmund 

 Heller, November 8, 191 1 ; original number 4675. 



Characters. — Like Mus grains of Ruwenzori but underparts much 

 more buffy or rather ochraceous in tone. Body size somewhat less, 

 both the feet and skull being smaller but the tail is longer. The 

 dorsal color is bister-brown lined by black medially and bordered on 

 the lower sides by an indefinite band of bright fulvous. The under- 

 parts are ochraceous, the hair basally gray. Feet buffy. This race 

 is confined to the remnants of forest still left on the extreme summits 

 of the Taita Hills at elevations of 5,000 or 6,000 feet. Two addi- 

 tional specimens are in the collection from Mbolobo Mountain and 

 one other from LTmengo Mountain. 



Flesh measurements of the type: head and body, 60 mm. ; tail, 59; 

 hindfoot, 13 ; ear, 11. Skull : condylo-incisive length, 17.3 ; zygomatic 

 breadth, 9.3; interorbital breadth, '3.5 ; nasals, 2.3x8.2; length of 

 upper tooth row, 3.3 ; diastema, 4.5 ; length of incisive foramina, 4.2. 



